Port from Qt4 to Qt5

Testes in windows 7 and Linux Mint 14 Nadia(32 bit)

Qt 5.0.1 MingW
Merge branch 'Qt5port' of https://github.com/bruceoutdoors/EasyPaint into bruceoutdoors-Qt5port
Add new contributor
Now also Qt 4 compatible
Merge pull request #128 from bruceoutdoors/Qt5port

Now also Qt 4 compatible
Small fix for issue #127