Merge branch 'master' of https://github.com/kivy/kivy
Merge branch 'master' of https://github.com/kivy/kivy
Merge branch 'master' of https://github.com/kivy/kivy
Merge branch 'master' of https://github.com/kivy/kivy
Include gstreamer in pyinstaller
Add docs for packaging with pyinstaller on windows.
Merge pull request #1801 from matham/pyinstaller

Fix adds docs for using pyinstaller on windows