BF: logging messages were sometimes duplicated and weren't showing new vals
BF: allow unicode log messages to be sent to terminal by encoding
DOCS: bumped version number for release 1.80.04
ENH: RatingScale option labels=None now hides all labels
Merge pull request #573 from jeremygray/master

ENH: RatingScale option labels=None now hides all labels
Merge pull request #572 from isolver/master

ioHub and ioSync ENH
Small doc cleanups for gui.fileSaveDlg() and gui.fileOpenDlg().
Merge pull request #574 from hoechenberger/master

Small doc cleanups for gui.fileSaveDlg() and gui.fileOpenDlg().
Merge branch 'master' of git://github.com/psychopy/psychopy