minor cleanup
fix duplicated clear tool
Move 'Clear Frame' menu item
code format
Remove unused shortcut
Merge pull request #167 from chchwy/bugfix/duplicated-clear-tool

Bugfix/duplicated clear tool
Merge branch 'master' of https://github.com/pencil2d/pencil
Color Inspector has initial color
change signal name
rename colorspingroup => colorinspector
fix the problem of color wheel boundary
try to connect colormanager and colorPalleteWidget
Ignore Info.plist & .pbproj
Merge branch 'feature/color-box-enhancement' of https://github.com/chchwy/pencil2d into feature/color-box-enhancement
resolve the infinite signal cycle when using eyedropper
Merge pull request #169 from chchwy/feature/color-box-enhancement

Feature/color palette enhancement
For Remove Qt4.8 only API QImage::fill()