Basic setup for angular-translate + added node_modules/.bin to PATH into .env (#44)
Removed npm_requirements, now we use a proper package.json file
Added node_modules/ to ignored files
Configured angular translate into app.coffee + added ng-translate script to index.html
Added grunt-contrib-watch to autogenerate translation files
Added & configured grund-contrib-watch into Gruntfile
Changed README.md for the new npm dependencies installation
Started 'How to translate the application' section into README.md
Generated locales files and did some translations
Replaced strings by translation keys into cards, scale & header template
Updated keys to be more object oriented
Updated & fixed templates for translation + updated translation files
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