Add search input box next to the tags. When user changes the value of
the input box then it's propagated to the user service as filterQuery
string. filterQuery string is then used in the tasks template to filter
tasks by text.
* Added a task to Gruntfile to use website/src/i18n.js to generate a small JS file to be loaded in Karma env which sets window.env.translations to the i18n.translations['en'].
* Added new Grunt task to build:dev
* Updated Karma specs to reenable testing where possible, updating comments where not.