Added size filter
Refactored versions controller
Refactored titles in VFSOverviewController and LargeFilesController

Conflicts:
	src/main/java/org/olat/core/gui/components/form/flexible/impl/elements/table/FlexiTableElementImpl.java

additionally selected column

Allow the browser to cache the images in the page editor (new images
will get new mappers and therefore update is not an issue), don't create
new image component by settings changes but update them to allow again
the browser to use the cached images.

columns from 2 to 1

additionally selected column

Merge branch 'basiccontroller_cleanup' of git://github.com/tomgross/OpenOLAT into tomgross-basiccontroller_cleanup

Merge exception for mockito

Merge exception for mockito

Merge getter method for cluster config

Merge branch 'cluster_config_getter' of git://github.com/tomgross/OpenOLAT into tomgross-cluster_config_getter
Merge getter method for cluser config

Merge GitHub pull request leak database connection configuration

Merge branch 'leak_detection_config' of git://github.com/tomgross/OpenOLAT into tomgross-leak_detection_config
Merge GitHub pull request

Conflicts:
	src/main/java/org/olat/upgrade/_spring/databaseUpgradeContext.xml