this fixes the hierarchy for searches.
bugfix merge for double selection.
improved addUnmatchedParents to also reflect selection.
improved adding of selected/unmatched parents.
improved data format.
if new data is loaded and we are currently down a project tree,
the parents of the previous element are taken into consideration.
improved even more. Previous solution was buggy-
also removed dead code.
removed bug with select2 scroll point.
bugfix for loading projects from different urls.
added disabled projects.
Merge pull request #46 from opf/fix/select2-projectTreeMissing

Fix/select2 project tree missing