Changed the path for coffee script files
Change grunt-angular-translate dependency to use jplusplus/grunt-angular-translate
Updated keys + added plural forms of time units
Added i18nextract configuration for template interpolate into Gruntfile
Configured angular-translate to use message interpolation
Created a separated service for Humanization of strings
Removed utility toolbelt from filters.coffee, now it's a separated service: humanizeService
Added messageformat.js & angular-translate-interpolation-message-format.js to project & index.html
Updated locales