Psychopy OSX 64-bit compatibility added

Got psychopy to work on 64-bit OSX systems, with pyglet 1.2 alpha 1
Corrected system check for pyglet.lib overload
Another corrected platform check

This one slipped my attention for a minute
Platform checks done right this time
BF: fix issue with wx3.0 on OSX to do with fonts having odd names

For some reason 'Lucida Grande' is being called '.Lucida Grande UI'
and then spits an error

Now creating a pair of fonts at app init and using those throughout,
rather than using GetFont().SetFaceName() so often

On OS X there are lots of warning about improving performance by
using PostScript font names but apparently this is fixed in wx upstream
BF: compatibility with wx3.0 needs explicit AUIManager.UnInit()
BF: compatibility with wx3.0 - shortcut keys were mostly not working

e.g. copy/paste shortcuts had no effect
now using an accelerator table to make sure they do
BF: compatibility with wx3.0 - preferences dlg needed keyboard accelorators to quit
BF: wx compatibility - fixed issues with LoopDlg and SettingsDlg. Fixes #615
BF: Polygon component crashes when Size [w, h] $ is set to 'set every repeat' or 'set every frame'.
Merge pull request #622 from hsogo/master

BF: Polygon component crashes when Size [w, h] $ is set to 'set every re...
ENH: Fix compatibility with wxPython 2.8

Starting the Builder with wyPython 2.8 raised AttributeErrors because
Font's Larger() method is not available before 2.9.1. The application
calls ensureMinimal() for 2.8 so this version should be supported. It
was fixed by adding a check if Larger() is available. Using a smaller
font still seems to work and allows using PsychoPy on older wxPython.
DOC: Fix typo in pylint configuration
Merge pull request #623 from philippwiesemann/fix-builder-compatibility-wxpython-font-larger

ENH: Fix compatibility with wxPython 2.8
Merge pull request #561 from dschreij/pyglet-1.2alpha1

Psychopy OSX 64-bit compatibility added