SearchBox items are deleted/readded in VerticalNode after being chosen/deleted
Problem: Items are added to the end of the list
made return type of getSearchBoxes  Collection<SearchBox>
changed constructor a bit
an annotation level that has been removed from
the list is now readded at the right position in the
menubar using method addItem
renamed method addItem to reAddItem
renamed method addItem to reAddItem --> fixed the call in this class
deleted comments
no changes
nothing changed ... learned ... a bit
update from martin and from korpling
correction of meta level issue
updated ddd instance
added todo for killnamespace
trying out how a normal optiongroup looks, and added todo for contextual twincolselect
not all levels for an annotation were shown due to sloppy breaking
fix killnamespace bug, but is it working?
Merge branch 'master' of https://github.com/ruettet/ANNIS

Conflicts:
	annis-gui/src/main/java/annis/gui/precedencequerybuilder/PrecedenceQueryBuilder.java