removed unused resources
improved cards ui
added some private api
added some undocumented apis to use with official keys
improved cards ui
implemented settings import
updated license infomation
improved icons
updated support library
improved data import/export feature
bug fixes
bug fixes
prepare to release 0.2.9.9
reduced overdraw
updated translation
ready to release
updated support library
Merge branch 'dev' into f-droid
updated project properties
updated project properties
fixed conflicts