add .travis.yml
add travis badge for master
add coveralls.yml
add coveralls badge
add coderwall badge
Merge branch 'hotfix/add_badges' into develop

* hotfix/add_badges:
  add coderwall badge
  add coveralls badge
  add coveralls.yml
  add travis badge for master
  add .travis.yml
add model and controller searcher
add searchers tests
Merge branch 'feature/searcher' into develop

* feature/searcher:
  add searchers tests
  add model and controller searcher