DEMO: mouse.py spot follows the mouse

(and reveals a current bug: fails to follow after one click)
BF: more agressive forcing of updates (fixes strange bug in setting of stim pos)
Merge branch 'master' of git://github.com/psychopy/psychopy

* 'master' of git://github.com/psychopy/psychopy:
  BF: more agressive forcing of updates (fixes strange bug in setting of stim pos)
Merge branch 'master' of git://github.com/psychopy/psychopy
Merge pull request #494 from jeremygray/master

DEMO mouse.py dynamic position
BF: cumulative normal function

corrected small mistake in the function definition of the cumulative
normal and the inverse cumulative normal
ENH: comment cumulative normal function

added the new function definitions of the cumulative normal and its
inverse
Merge pull request #496 from PieterMoors/master

BF: correction to fit cumulative normal function
ENH: visual.Aperture now uses ShapeStim for its rendering - more flexible size and shapes can be used

Beforehand we could only create a radius and a fixed regular polygon (using
gluDisk) but now we can use arbitrary vertices and aspect ratios
Merge branch 'master' of git://github.com/psychopy/psychopy
Merge pull request #498 from isolver/master

Misc. ioHub Update + one method added to FontManager
BF: data entries that contain new line chars should be enclosed in quotes for csv files
BF: prevent files with corrupted Static components from breaking file loading
FF: Fix Aperture initialization

Passing a tuple, a list or an array did not work because checking the
type was done after checking if it was string. This could not be true
and therefore the default configuration was used. Passing None did work
accidentally because it sets the same configuration as the default case
but actually the related check also failed for the same reason.
DOC: Fix typo in global variable name
Merge pull request #499 from philippwiesemann/fix-aperture-init

FF: Fix Aperture initialization
DEMO: aperture.py with irregular aperture
DEMO: fix typo in comment
Merge pull request #500 from jeremygray/master

DEMO: aperture.py with irregular aperture
DOC: add note about how to disable auto-update; closes #493