ENH: added pyobjc libs to standalone mac dist
DOCS: bumped version to 1.76.01
1.76.00 is now set tp alert in auto-update
BF: initPyo several small fixes

- syntax error in raise ValueError
- need pyo imported to use microphone
- check for and set maxChannels
- detect that the server actually works, or provide message
Merge pull request #279 from jeremygray/master

Several small BF in sound.initPyo
ENH: use ubyte for all image textures. Roughly 40% faster to load/upload
ENH: visual speed-up: don't call pyglet.window.switch_to() unless needed
Merge branch 'master' of github.com:psychopy/psychopy