Fixed the way to build args for logging in utilsFactory
Cleaned & strenghtened TopicsFactory code base
Improved two-way bindings between controllers & QueryUtils + TopicsFactory
Enabled 2-way binding for 'value' tt-typeahead directive
Added humanSearch  method to QueryUtils
Renamed 'QueryUtils' service to 'QueryFactory' + added showResults method to SearchFormCtrl (#201)
Added special style for search button (#201)