non-jira: append build revision to circumvent ids in virtual host config

src/main/java/org/olat/core/commons/chiefcontrollers/BaseChiefController.java

@@ -212,7 +212,7 @@ public class BaseChiefController extends DefaultChiefController implements Conte
 		contentPanel = new Panel("olatContentPanel");
 		mainvc.put("olatContentPanel", contentPanel);
 		mainvc.contextPut("o_winid", w.getDispatchID());
-		mainvc.contextPut("buildversion", Settings.getVersion());
+		mainvc.contextPut("buildrevision", Settings.getRepoRevision());
 		
 		WindowControl wControl = new WindowControl() {
 			private WindowControlInfo wci;

src/main/java/org/olat/core/commons/chiefcontrollers/_content/body.html

@@ -124,7 +124,7 @@ $r.render("jsCssRawHtmlHeader", "pre-theme")
 ## 2) CSS theme inclusion and favicons
 <link rel="icon" href="${theme.getBaseURI()}favicon.ico" type="image/x-icon" /> 
 <link rel="shortcut icon" href="${theme.getBaseURI()}favicon.ico" type="image/x-icon" /> 
-<link id="b_theme_css" href="${theme.getBaseURI()}layout.css" rel="stylesheet" type="text/css" />
+<link id="b_theme_css" href="${theme.getBaseURI()}layout.css?${buildrevision}" rel="stylesheet" type="text/css" />
 ## 3) IE specific bugfixes for current theme
 <!--[if lte IE 7]>
 <link href="${theme.getBaseURI()}patches.css" rel="stylesheet" type="text/css" />