DOCS: update to credits and to *latest release* section
DOC: contains() not implemented for GratingStim

- could test if the mask has non-zero alpha at that point
- could test if the point is a sensible closeness to pos given texRes
  (define a circle of vertices and use normal .contains algorithm)
DOC: fix for val2array.
ENH: _setWithOperation now handles power and modulus.
And made it a bit nicer to read.
DOC: couldn't spell deprecated. Now I can.
Merge branch 'master' of github.com:psychopy/psychopy
RF: refactor psychopy's iolab library and demo

- no changes to ioLabs package
- demo uses the (more accurate) clock on the ioLab bbox;
  seems like it mostly returns 1-4ms shorter estimated duration
  as compared to a core.Clock()
- button-release not working, but something like this can work
  (can get direction = -1 events but not fully working)
- changed the file name, due to git or OS issues (non-case sensitive)
ENH: y-position of builder static comp ISI label

- better position in smaller view sizes
ENH: builder static comp display, right edge
ENH: routine panel, more cosmetic changes

- draw static under time grid (per comment, and looks better)
- center label, draw on top of static rect
BF: fix for binoc eye getPosition() bug.
Merge pull request #361 from isolver/master

BF: fix for smi binoc eye getPosition() bug.
BF: RatingScale component: set low/high + anchorText

- low/high could be wrong if anchorText was also given
- fixed some code/str issues; $ and \$ were not working right
BF: fixed buglet with StairHandler - first reversal was in the wrong place

(just first reversal, so no actual effect on derived thresholds)
RF: tweak _dubiousConstantUpdates ignore list

- now also ignore the keys of the expInfo dict because these
  might be used as shortcuts for the dict entry. so if they
  appear as a var name, its plausibly not dubious so don't
  flag them.
RF+ENH: made visual.Window.getActualFrameRate() public and added an option to control precision.
RF: iolab.py smoothing

- some prep for bbox component
BF: gui choice boxes now handle unicode (thanks Anne Peschel)
Merge pull request #358 from jeremygray/master

several commits
NF: ioLabs buttonbox Builder component