Currently only covering handful of files from reports about wrong fps detected.
It will need D3083 applied first to get tests passed, also tests themselves
are to be committed to svn.
But there are some python code which needs to be reviewed, like blendfile
passed to run_blender().
Reviewers: sybren, mont29
Reviewed By: sybren, mont29
Subscribers: mont29
Differential Revision: https://developer.blender.org/D3096
