Add some helper methods to Language
Use interpolate in ContributionPanel status
Merge branch 'master' into language-helpers
Update greek translation
Fix typo and add missing string
Merge pull request #2714 from federicobond/fix-translation

Fix typo and add missing string
fix AIOOBE when sorting all NaN FloatList or FloatDict
Merge branch 'master' of github.com:processing/processing
cleaning up settings path and language pref handling
more NaN check business
rename sketchbook tree name, re-order menu, add language hooks
Merge pull request #2704 from federicobond/language-helpers

Add some helper methods to Language
Split Preferences data model and GUI