Documentation.
Check documentation for unused includes.
Ensure that all generated documentation is included.
Document Grid.

Conflicts:
	sphinx/source/inc/reserved_renpy
Check in inc/disp_grid.
Document NoRollback.
Ignore errors in OpenDirectory.
Document renpy.map_event.
Document NoRollback as class, not function.
More documentation and flagging as undocumented.
Merge pull request #257 from LuqueDaniel/fix-rmtree

Fix delete the tmp directory
Fix typo that broke Android.

We copied script_version.rpy onto script_version.rpyc, which
made things fail to start on Android.
Report NO_RAPT before NO_JDK.

On Windows, RAPT is responsible for detecting the JDK. If RAPT is
missing, the JDK will also be reported missing - even if it's
installed.

Changing the reporting order makes this less confusing.