Merge pull request #8 from dkhamsing/master

Update installing
Change string value to NSLocalizedStringWithDefaultValue
Bug fix
Merge branch 'master' into develop
Fixed rotate tool’s bug
Changed string to NSLocalizedStringWithDefaultValue
Fix rotate tool
Add theme settings
Merge pull request #10 from yackle/develop

Add theme settings
Modified podspec
Merge branch 'master' into develop
Update podspec
cosmetic change
Add CLStickerTool
Fixed scrollview scale bug
Update Localizable.strings
Update podspec
Fix podspec
Modified podspec
Merge pull request #11 from yackle/develop

Added sticker tool as optional image tool