Fix compile warning
Code cleanup
Minor cleanup
Minor clenaup
Merge branch 'refactor/layer-manager' into feature/object-save-loader
Merge branch 'refactor/layer-manager' into feature/object-save-loader
Merge branch 'master' into feature/object-save-loader
Merge branch 'master' into feature/object-save-loader
Fix compiler errors in Qt 5.2.1
minor
Merge branch 'master' into feature/object-save-loader
minor
clean up
Remove useless variable 'gradients'
Add .gitattributes and do line end normalizing.
Fix compiler errors, replace phonon with QtMultimedia
Merge branch 'feature/qt5-migration' into feature/object-save-loader

Conflicts:
	src/external/win32/win32.cpp
	src/graphics/vector/gradient.cpp
	src/interface/editor.cpp
	src/interface/editor.h
	src/interface/mainwindow2.cpp
	src/structure/layersound.h
Minor
Merge branch 'master' into feature/object-save-loader

Conflicts:
	pencil.ts
	src/interface/displayoptiondockwidget.cpp
	src/interface/editor.cpp
	src/interface/mainwindow2.cpp
	src/interface/tooloptiondockwidget.cpp
	src/main.cpp
	src/structure/layersound.cpp
Try to use Qt5 new signal-slot syntax