Add zh-Hans first.

Localized some files. To be continued...
Merge branch 'release/2.0.2' into develop
Fix a typo in release note
Remove a useless fix
Update version number
Merge remote-tracking branch 'upstream/develop' into develop
Add fallback for ediror font (fix #298)
Add another font fallback (#298)
Fix font overlap
Fix autolayout warning for zh-Hans
Localized printpanel
Update OgreKit
Disable rich text in find panel
Fix Go button (fix #301)
Update OgreKit version
Update localization for some xib files
Finish XIB files
Fix autolayout
Localized strings and fix some translation in xibs
Fix word to be apt