diff --git a/src/main/java/org/olat/basesecurity/Constants.java b/src/main/java/org/olat/basesecurity/Constants.java
index 8cd0fa250b2b7722a7b8fb66cb4c13f7930a779f..f64e2e4373b487ef1a17dd5aeced673d8e603796 100644
--- a/src/main/java/org/olat/basesecurity/Constants.java
+++ b/src/main/java/org/olat/basesecurity/Constants.java
@@ -211,4 +211,27 @@ public class Constants {
 	 */
 	public static final OLATResourceable ORESOURCE_GUESTONLY = OresHelper.lookupType(BaseSecurityModule.class, "RGuestOnly");
 
+	/**
+	 * status of a user
+	 * <code>USERSTATUS_ACTIVE</code> is an active user
+	 */
+	public static final Integer USERSTATUS_ACTIVE = 2;
+
+	/**
+	 * status of a user
+	 * <code>USERSTATUS_NOT_DELETEABLE</code> is a not deleteable user
+	 */
+	public static final Integer USERSTATUS_NOT_DELETEABLE = 1;
+
+	/**
+	 * status of a user
+	 * <code>USERSTATUS_LOGIN_DENIED</code> is a user, whose login is denied
+	 */
+	public static final Integer USERSTATUS_LOGIN_DENIED = 101;
+
+	/**
+	 * status of a user
+	 * <code>USERSTATUS_DELETED</code> is a deleted user
+	 */
+	public static final Integer USERSTATUS_DELETED = 199;
 }
\ No newline at end of file
diff --git a/src/main/java/org/olat/commons/calendar/ICalFileCalendarManager.java b/src/main/java/org/olat/commons/calendar/ICalFileCalendarManager.java
index 94a7b5c5b2b18f2d355de2d3ea084310f07c9cab..03e8df7a8ae5ba67f7024aedb17e9ff17ebd46b3 100644
--- a/src/main/java/org/olat/commons/calendar/ICalFileCalendarManager.java
+++ b/src/main/java/org/olat/commons/calendar/ICalFileCalendarManager.java
@@ -484,7 +484,7 @@ public class ICalFileCalendarManager extends BasicManager implements CalendarMan
 		Date end = null;
 		if (dur != null) {
 			end = dur.getDuration().getTime(event.getStartDate().getDate());
-		} else { 
+		} else if(event.getEndDate() != null) { 
 			end = event.getEndDate().getDate();
 		}
 
diff --git a/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarMapper.java b/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarMapper.java
index 32766ed3da2d7f693f6f11b486028cb61de0dcea..b17f37067efddb8dd8a0954c0276ed8efdcd8930 100644
--- a/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarMapper.java
+++ b/src/main/java/org/olat/commons/calendar/ui/components/FullCalendarMapper.java
@@ -138,12 +138,22 @@ public class FullCalendarMapper implements Mapper {
 	private boolean isInRange(Date from, Date to, KalendarEvent event) {
 		Date end = event.getEnd();
 		Date begin = event.getBegin();
-		if(from.compareTo(begin) <= 0 && to.compareTo(end) >= 0) {
-			return true;
-		} else if(from.compareTo(begin) <= 0 && to.compareTo(begin) >= 0) {
-			return true;
-		} else if(from.compareTo(end) <= 0 && to.compareTo(end) >= 0) {
-			return true;
+		if(begin != null && end != null) {
+			if(from.compareTo(begin) <= 0 && to.compareTo(end) >= 0) {
+				return true;
+			} else if(from.compareTo(begin) <= 0 && to.compareTo(begin) >= 0) {
+				return true;
+			} else if(from.compareTo(end) <= 0 && to.compareTo(end) >= 0) {
+				return true;
+			}
+		} else if(begin != null) {
+			if(from.compareTo(begin) <= 0 && to.compareTo(begin) >= 0) {
+				return true;
+			}
+		} else if(end != null) {
+			if(from.compareTo(end) <= 0 && to.compareTo(end) >= 0) {
+				return true;
+			}
 		}
 		return false;
 	}
diff --git a/src/main/java/org/olat/group/ui/main/AbstractBusinessGroupListController.java b/src/main/java/org/olat/group/ui/main/AbstractBusinessGroupListController.java
index 4e5ab328cbbc0d098d493be1821a9e25a586e049..af140de1ec66c52debeb23eb95d2e9fe4733cbb4 100644
--- a/src/main/java/org/olat/group/ui/main/AbstractBusinessGroupListController.java
+++ b/src/main/java/org/olat/group/ui/main/AbstractBusinessGroupListController.java
@@ -75,6 +75,8 @@ import org.olat.core.util.mail.MailHelper;
 import org.olat.core.util.mail.MailPackage;
 import org.olat.core.util.mail.MailTemplate;
 import org.olat.core.util.resource.OresHelper;
+import org.olat.core.util.vfs.Quota;
+import org.olat.core.util.vfs.QuotaManager;
 import org.olat.group.BusinessGroup;
 import org.olat.group.BusinessGroupManagedFlag;
 import org.olat.group.BusinessGroupMembership;
@@ -676,6 +678,16 @@ public abstract class AbstractBusinessGroupListController extends FormBasicContr
 							tools.setToolEnabled(enabledTool, true);
 							if(CollaborationTools.TOOL_FOLDER.equals(enabledTool)) {
 								tools.saveFolderAccess(new Long(configuration.getFolderAccess()));
+								
+								Quota quota = configuration.getQuota();
+								if(quota != null) {
+									String path = tools.getFolderRelPath();
+									Quota fQuota = QuotaManager.getInstance()
+										.createQuota(path, quota.getQuotaKB(), quota.getUlLimitKB());
+									QuotaManager.getInstance()
+										.setCustomQuotaKB(fQuota);
+								}
+								
 							} else if (CollaborationTools.TOOL_CALENDAR.equals(enabledTool)) {
 								tools.saveCalendarAccess(new Long(configuration.getCalendarAccess()));
 							}
diff --git a/src/main/java/org/olat/group/ui/wizard/BGConfigQuotaController.java b/src/main/java/org/olat/group/ui/wizard/BGConfigQuotaController.java
index 6338e4c1d445e1d6d01f9af4675e4cdc622ce01b..0e198d0b62ca7f09046a9fb73c05826703d5903e 100644
--- a/src/main/java/org/olat/group/ui/wizard/BGConfigQuotaController.java
+++ b/src/main/java/org/olat/group/ui/wizard/BGConfigQuotaController.java
@@ -30,6 +30,7 @@ import org.olat.core.commons.modules.bc.FolderConfig;
 import org.olat.core.gui.UserRequest;
 import org.olat.core.gui.components.form.flexible.FormItemContainer;
 import org.olat.core.gui.components.form.flexible.elements.IntegerElement;
+import org.olat.core.gui.components.form.flexible.impl.Form;
 import org.olat.core.gui.components.form.flexible.impl.FormBasicController;
 import org.olat.core.gui.control.Controller;
 import org.olat.core.gui.control.Event;
@@ -59,6 +60,13 @@ public class BGConfigQuotaController extends FormBasicController {
 		this.quota = quota;
 		initForm(ureq);
 	}
+	
+	public BGConfigQuotaController(UserRequest ureq, WindowControl wControl, Quota quota, Form rootForm) {
+		super(ureq, wControl, -1, null, rootForm);
+		setTranslator(Util.createPackageTranslator(QuotaForm.class, getLocale(), getTranslator()));
+		this.quota = quota;
+		initForm(ureq);
+	}
 
 	/**
 	 * @return Quota in KB.
diff --git a/src/main/java/org/olat/group/ui/wizard/BGConfigToolsStepController.java b/src/main/java/org/olat/group/ui/wizard/BGConfigToolsStepController.java
index 252557a8945660cbe02092051a02cd69e1964312..33088460288eaf29f24bb800a32f87003574fcb7 100644
--- a/src/main/java/org/olat/group/ui/wizard/BGConfigToolsStepController.java
+++ b/src/main/java/org/olat/group/ui/wizard/BGConfigToolsStepController.java
@@ -116,7 +116,7 @@ public class BGConfigToolsStepController extends StepFormBasicController {
 				//add quota configuration for admin only
 				if(ureq.getUserSession().getRoles().isOLATAdmin()) {
 					Quota quota = quotaManager.createQuota(null, null, null);
-					config.quotaCtrl = new BGConfigQuotaController(ureq, getWindowControl(), quota);
+					config.quotaCtrl = new BGConfigQuotaController(ureq, getWindowControl(), quota, mainForm);
 					config.configContainer.add("quota", config.quotaCtrl.getInitialFormItem());
 					config.quotaCtrl.getInitialFormItem().setVisible(false);
 				}
@@ -168,7 +168,9 @@ public class BGConfigToolsStepController extends StepFormBasicController {
 					configuration.setFolderAccess(config.folderCtrl.getFolderAccess());
 					//only admin are allowed to configure quota
 					if(ureq.getUserSession().getRoles().isOLATAdmin() && config.quotaCtrl != null) {
-						Quota quota = quotaManager.createQuota(null, config.quotaCtrl.getQuotaKB(), config.quotaCtrl.getULLimit());
+						Long quotaKB = config.quotaCtrl.getQuotaKB();
+						Long ulLimit = config.quotaCtrl.getULLimit();
+						Quota quota = quotaManager.createQuota(null, quotaKB, ulLimit);
 						configuration.setQuota(quota);
 					}
 				}
diff --git a/src/main/java/org/olat/repository/controllers/RepositorySearchController.java b/src/main/java/org/olat/repository/controllers/RepositorySearchController.java
index 1e659691e39e7c1027de806ce99a92b8c32dceed..0633f992c57f8e31092dd9f20a65250fa29556b3 100644
--- a/src/main/java/org/olat/repository/controllers/RepositorySearchController.java
+++ b/src/main/java/org/olat/repository/controllers/RepositorySearchController.java
@@ -459,11 +459,16 @@ public class RepositorySearchController extends BasicController implements Activ
 		displaySearchResults(ureq);
 	}
 
-	private void doSearchById(Long id) {
+	private void doSearchById(Long id, Set<String> restrictedTypes) {
 		RepositoryManager rm = RepositoryManager.getInstance();
 		RepositoryEntry entry = rm.lookupRepositoryEntry(id);
 		List<RepositoryEntry> entries = new ArrayList<RepositoryEntry>(1);
-		if (entry != null) entries.add(entry);
+		if (entry != null) {
+			if(restrictedTypes == null || restrictedTypes.isEmpty()
+				|| restrictedTypes.contains(entry.getOlatResource().getResourceableTypeName())) {
+				entries.add(entry);
+			}
+		}
 		filterRepositoryEntries(entries);
 		repoTableModel.setObjects(entries);
 		tableCtr.modelChanged();
@@ -651,7 +656,7 @@ public class RepositorySearchController extends BasicController implements Activ
 		}	else if (source == searchForm) { // process search form events
 			if (event == Event.DONE_EVENT) {
 				if (searchForm.hasId())	{
-					doSearchById(searchForm.getId());
+					doSearchById(searchForm.getId(), searchForm.getRestrictedTypes());
 				} else if (enableSearchforAllInSearchForm != null) {
 					doSearchAllReferencables(urequest, null, true);
 				} else {
diff --git a/src/main/java/org/olat/restapi/system/OpenOLATStatisticsWebService.java b/src/main/java/org/olat/restapi/system/OpenOLATStatisticsWebService.java
index 0b587e8ffdbd871248a4de4c0911487f33357a56..c03ad825bbfaf8b6b9eeef97d9b06b714c3bd5d5 100644
--- a/src/main/java/org/olat/restapi/system/OpenOLATStatisticsWebService.java
+++ b/src/main/java/org/olat/restapi/system/OpenOLATStatisticsWebService.java
@@ -31,6 +31,7 @@ import javax.ws.rs.core.Response;
 import org.olat.admin.sysinfo.manager.SessionStatsManager;
 import org.olat.admin.sysinfo.model.SessionsStats;
 import org.olat.basesecurity.BaseSecurity;
+import org.olat.basesecurity.Constants;
 import org.olat.core.CoreSpringFactory;
 import org.olat.core.util.SessionInfo;
 import org.olat.core.util.UserSession;
@@ -168,6 +169,8 @@ public class OpenOLATStatisticsWebService implements Sampler {
 		BaseSecurity securityManager = CoreSpringFactory.getImpl(BaseSecurity.class);
 		long countUsers = securityManager.countIdentitiesByPowerSearch(null, null, false, null, null, null, null, null, null, null, null);
 		stats.setTotalUserCount(countUsers);
+		long countActiveUsers = securityManager.countIdentitiesByPowerSearch(null, null, false, null, null, null, null, null, null, null, Constants.USERSTATUS_ACTIVE);
+		stats.setActiveUserCount(countActiveUsers);
 		
 		BusinessGroupService bgs = CoreSpringFactory.getImpl(BusinessGroupService.class);
 		long countGroups = bgs.countBusinessGroups(null, null);
diff --git a/src/main/java/org/olat/restapi/system/vo/UserStatisticsVO.java b/src/main/java/org/olat/restapi/system/vo/UserStatisticsVO.java
index a437267751345d48309f06c86ed264a962a5fad8..146cd683971d7257454e7b8fb00802a647b6eaab 100644
--- a/src/main/java/org/olat/restapi/system/vo/UserStatisticsVO.java
+++ b/src/main/java/org/olat/restapi/system/vo/UserStatisticsVO.java
@@ -34,6 +34,8 @@ public class UserStatisticsVO {
 
 	@XmlAttribute(name="totalUserCount", required=true)
 	private long totalUserCount;
+	@XmlAttribute(name="activeUserCount", required=true)
+	private long activeUserCount;
 	@XmlAttribute(name="totalGroupCount", required=true)
 	private long totalGroupCount;
 	
@@ -46,6 +48,14 @@ public class UserStatisticsVO {
 		this.totalUserCount = totalUserCount;
 	}
 	
+	public long getActiveUserCount() {
+		return activeUserCount;
+	}
+	
+	public void setActiveUserCount(long activeUserCount) {
+		this.activeUserCount = activeUserCount;
+	}
+	
 	public long getTotalGroupCount() {
 		return totalGroupCount;
 	}
diff --git a/src/test/java/org/olat/restapi/SystemTest.java b/src/test/java/org/olat/restapi/SystemTest.java
index 291c6cb82ab20de2b51245e1e60a747b3fcc5fae..71a2e3b67969d0ffeb79e31cf0db784d9ab96022 100644
--- a/src/test/java/org/olat/restapi/SystemTest.java
+++ b/src/test/java/org/olat/restapi/SystemTest.java
@@ -157,6 +157,7 @@ public class SystemTest extends OlatJerseyTestCase {
 		assertNotNull(userStats);
 		assertTrue(userStats.getTotalUserCount() > 0);
 		assertTrue(userStats.getTotalGroupCount() >= 0);
+		assertTrue(userStats.getActiveUserCount() >= 0);
 		
 		conn.shutdown();	
 	}