google map added without gems, gems deleted, styles updated
 csv files uploading and reading fixed, map view updated
hide fields in crop form
icons for sorted columns added, is_map? fixed, refactoring
refactoring ajax without reloading page, yield :head added, title updated
 change votes logic
refactoring locations.js.coffee for map drawing
Draper::Decorator added, def status removed from Comment
refactoring ajax, views, locations, updates, tests added