added $ for hasSome
added _setError and changed isValid method in entity
extended isStyleAttribute check and added support for style keys for firefox
corrected isValid method
Revert "added $ for hasSome"

This reverts commit 8dd1185b2d8025d1d77995ed60c7efd5f3a72565.
add initialize support for Bindable
Merge remote-tracking branch 'origin/dev' into dev