Merge https://github.com/Arcavias/arcavias-core into 2013-06-19_BugFix_Parentid_MoveNode
Fixes bug in moving nodes in a tree without a real root node
Removes extjs related code to the extjs controller
Merge http://github.com/Arcavias/arcavias-core into 2013-06-19_BugFix_Parentid_MoveNode
Merge pull request #224 from doleiynyk/2013-06-19_BugFix_Parentid_MoveNode

Enables moving nodes in tree manager between trees