RF: remove random-seed stuff from info.RunTimeInfo

- does not belong there
- and remove from coder demo
Merge pull request #567 from isolver/master

ADD Experimental MovieStim2 class; avbin free.
Merge pull request #568 from jeremygray/master

RF: remove random-seed stuff from info.RunTimeInfo
ENH: define some pylint expectations explicitly (pylintrc file); closes #562

- also elaborate caveats about using pylint
Merge pull request #569 from jeremygray/master

ENH: define some pylint expectations (pylintrc file); closes #562
Merge branch 'master' of git://github.com/psychopy/psychopy