update cpgf

update cpgf
fix QFlag conversion
improve v8 error reporting
update qt to 5.3.0

fix compilation

finalise generated files for 5.3
update example for Qt 5.3
update event dispatcher for qt 5.3
Merge pull request #15 from svalaskevicius/feature/update-qt-to-5.3.0

Feature/update qt to 5.3.0