Fixed issue with head includes not working correctly for container
elements which were migrated from the schema based formatter
configuration mechanism to the new one.
Improved java doc generation for Java 7.
Changed configuration order to resolve issues with gradle version 1.11.
Setting version number according to branch name.
Fixing issue where related container pages where not re-indexed.
Fixing issue with vanishing element groups when new elements have been
added.
Fixing exception handling while generating search result resources list.

Conflicts:
	src/org/opencms/workplace/search/CmsSearchResourcesCollector.java
Method
org.opencms.workplace.tools.modules.CmsCloneModuleThread#alterPrefix was
fixed
Merge branch 'branch_9_0_x' of https://github.com/alkacon/opencms-core into branch_9_0_x