Merge branch 'code-cleanup' into 'master'

QtIdenticon.pro

src/identicon.cpp

src/identicon.h

src/identiconstyle.cpp

src/identiconstyle.h

src/jdenticonplugin.cpp

src/rendering/colortheme.cpp

src/rendering/colortheme.h

src/rendering/colorutils.cpp

src/rendering/icongenerator.cpp

src/rendering/icongenerator.h

src/shapes/shape.cpp

src/shapes/shape.h