simple stack question sync functionality
Merge branch 'master' into stack
classificator settings
classify improvements
classifier optimization
style stack questions
display stack question information: score, answers_count, view_count, owner info
helvetica for ms windows
helvetica for ms windows
style changes
steeings : unblock objective-c
stack classificator : split ios questions by categories
stack: metagroups
stack: use partials for metagroups
length of unread interval
save settings to json
stack:  prevent download too old questions
stack classificator changes
stack: classify tuning
todo: somtimes I get the error: undefined method 'each' for nil:NilClass