Merge pull request #2469 from thopiekar/pkg-debian-testing

Applying patches for packaging files..
Adding garden module to python3 package
Adding garden module to python2 package
Update python3-kivy.install
Adding libav to Build-Deps
Sorting Build-Deps and addung additional dependencies from the docs
add libsmpeg-dev and remove libsdl-dev as it is required by libsmpeg-dev
Merge pull request #1 from kivy/pkg-debian-daily

sync daily with testing