corejs: lots of bugfixes for coretree
corejs: random fixes
hanging connections now removed (they hanged whenever the page was reloaded and they stayed after the page were closed)
bugfix
starting to test core3
corejs: small changes to coretree and parsing
Merge branch 'master' of ssh://git@github.com/webgme/webgme.git
the refreshing bug have been corrected now multiple client should remain on the same page
Merge remote-tracking branch 'origin/master' into develop-r
Merge from master
refactoring DiagramDesigner

separate DiagramDesigner from its usage in ModelEditor3 and MetaEditor