ModelRepo fix
Merge branch 'master' of github.com:cordjs/core
Merge branch 'master' of github.com:cordjs/core
Merge branch 'master' of github.com:cordjs/core
Merge branch 'master' of github.com:cordjs/core
Merge remote-tracking branch 'origin/master'
Merge remote-tracking branch 'origin/master'

Conflicts:
	ModelRepo.coffee
Offset calculation added to utils for event