Merge pull request #657 from isolver/master

iohub 2.0 related changes to date
RF: add file name extension to localization/mappings.txt

- might help auto-add to the manifest?
Merge pull request #658 from jeremygray/master

RF: add file name extension to localization/mappings.txt
FF: adjustments for MANIFEST.in to pick up a couple files
Merge pull request #659 from jeremygray/master

FF: adjustments for MANIFEST.in to pick up a couple files
BF: MonitorCenter.py handle notes == None
DOC: Remove tooltip non-functional suggestion

The tooltip previously gave an example of using 'randint(5)' as an argument to the row selection field in the loop dialog. This would actually lead to an error:
TypeError: range() integer end argument expected, got numpy.float64.
numpy.randint() does return an integer so not sure why this error arises, but removing the suggestion from the tooltip in the interim.
Merge pull request #660 from jeremygray/master

BF: MonitorCenter.py handle notes == None
Merge pull request #662 from m-macaskill/patch-2

DOC: Remove tooltip non-functional suggestion
Merge branch 'master' of git://github.com/psychopy/psychopy