Merge pull request #344 from jeremygray/master

microphone docs etc
DOCS: version and changelog -> 1.78
DOCS: updated URLS for Static Comp and for fetching installer files

installs now at sourceforge
Static Component is in standard docs site
ENH: psychopyApp.py should be just a launcher with class code stored elsewhere

This is important for the mac app bundle which stores the launcher script
in a diff place to the class code and the launcher script isnt updated by
the auto-updater. That can cause a crash if the launcher and class code
differ.
Merge branch 'master' of github.com:psychopy/psychopy

Conflicts:
	docs/source/changelog.rst
DOCS: front page updated with new version number

also added extra decimal place to s.d. of refresh times because it's too
precise on my mac to show in one d.p. =0.05ms :-)
ENH RatingScale doc-strings, add 'slider' marker option