Removed upper bound open occurrence ranges
Removed to column switches
Redefined attribute group, removed group creation in server side, added
group factory in client side
Refactored columns config menu
Merge branch 'dev' of https://github.com/cotrix/cotrixrep.git into dev

Conflicts:
	cotrix/cotrix-web-manage/src/main/java/org/cotrix/web/manage/server/GroupFactory.java
Added occurrence ranges to link definitions
Fixed columns list maintenance
Fixed column reordering
Fixed Linkgroup creation, fixed link definition update