Merge pull request #38 from Supme/master

Russian translation
Fixing a duplicate id "comments" on single issue view
Adding comment deletion for admins
#35 #fixed
Fixing Sprints doctype
Use condensed table for admin user list
Implementing remaining features from #40, with other minor improvements
Fixing update comments
File list/table view (#31)
Merge pull request #2 from Alanaktion/master

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