Update zh_CN.ts
Add `flush()` method to `output_buffer` objects.
Merge pull request #193 from zqlinju/patch-1

Update zh_CN.ts
Merge remote-tracking branch 'origin/playground' into playground
Intercept `psychopy.core.quit` to avoid the process from being killed.
Update `zh_CN.qm`
Improvements and fixes to checkbox and rating_scale form widgets (#189)
Convert advanced_delay plug-in to new-style API and fix issue #199.
Use `color` keyword argument in `canvas.arrow()`. Fixes #198.
Prevent key names like `[1]` to avoid variable errors (#197)
- Convert openexp._keyboard.legacy to Unicode
- Deprecate keyboard.shift()
Unicodify html parser
Reset HTML parser before each text rendering (#196)
Make HTML parsing optional in sketchpad items (#195)
Update debian/changelog
Fix text_display plug-in to work with special characters
Bump to 0.27.4~pre2
Bump to 0.27.4~pre3
Unicodify misc.theme
Update gnome theme to work with reduced Ubuntu version of gnome-icon-theme
Convert form_multiple_choice to new-style API
- Fix `click_accepts` keyword in checkbox widget
- Fix #200.