Minor fixes to compile against Qt 5.3.2 (Linux)
Minor improvement on constraint import. Fillfactor attribute now is
correcly retrieved.

Minor fix on macdeploy.sh to compile pgModeler using qt 5.3.2
Fixed a bug when start the creation process of relationships on model
widget.

Minor improvement on modelfixform.ui
Model database diff implementation checkpoint
Minor fix to compile windows version using Qt 5.3.2
Version update 0.8.0-alpha1 -> 0.8.0-alpha2
Merge branch 'fixes-for-qt-5.3.2' into model-db-sync