Fix bigger/smaller font action in toolbar
Tweak toolbar icons
Fix crashing with black and white print
Update doc icons for Yosemite (close #223)
Fix document icon for CoffeeScript
Update several toolbar icons
Fix localization in print pane
Fix crash on printing unsaved document
Update help contents (#221)
Migrate HTML of help contents to XHTML5 (#221)
Update helpindex (close #221)
Merge branch 'help' into develop
Suppress error by Travis CI
Update CocoaPods
Add YAML framework
Transrate bundled syntax files from plist to YAML
Save syntax style as YAML format (#154)
Use patched YAML Framework
Add migration code to YAML for user styles
Fix reST syntax style