Fix bug due to additional wildcard in `zh_CN` (Chinese translation)
Various fixes to loop item
- Properly handle variably defined properties (#215)
- Unicodify all strings
- Clean up code comments
Bump to 2.8.0~pre8
Automated check and fix of mismatching wildcards in translations
First step to making joystick plug-in backend independent
- Necessary due to system freezes when using in combination with PsychoPy back-end
Unicodify widgets code
Correctly parse non-unix line separators in html parser
Fix windows setup script to match updated media_player_vlc