implement files field in filechooser
Merge branch 'master' of https://github.com/kivy/kivy into implement_files_filechooser
Update pong.rst

A few typos and drawing attention to an aspect not mentioned before in the text.
Update pong.kv

PongBalls' id is not needed at this point of the tutorial; moreover it had a confusing value that was different from the values later on in the text ('pong_ball')
Revisions to getttingstarted\drawing.rst
doc: add style for field list. configuration tokens and anything else using field list are now displayed >_>
Merge pull request #1157 from Zen-CODE/Doc_English_Improvements_32

doc: revisions to getttingstarted\drawing.rst
Merge pull request #1150 from rogererens/patch-3

Update pong.rst
Merge pull request #1118 from matham/implement_files_filechooser

Implement the files field in filechooser
Revisions to getttingstarted\events.rst
Revisions to getttingstarted\events.rst
Merge pull request #1162 from Zen-CODE/Doc_English_Improvements_33

doc: revisions to gettingsstarted/events.rst
garden: introduce kivy.garden module, and kivy/tools/garden commandline tool.
Merge branch 'master' of ssh://github.com/kivy/kivy
doc: add kivy.garden in the auto doc
Merge pull request #1151 from rogererens/patch-4

Update pong.kv
garden: fix prefetch
Merge branch 'master' of ssh://github.com/kivy/kivy
Merge branch 'master' of https://github.com/kivy/kivy
allow executing garden on windows.