update version
add coveralls setting
add coveralls badge
add formatter for local test
add spec for mount_ponytail
rename migration_spec.rb
support rails 3
add spec for save
Merge branch 'feature/specs' into develop

* feature/specs:
  add spec for save
  support rails 3
  rename migration_spec.rb
  add spec for mount_ponytail
  add formatter for local test
add group 'Controllers' to SimpleCov
add 'feature/travis' to .travis.yml'
only rails4
add gem badge
add controller specs
add migration specs
Merge branch 'feature/add_specs' into develop

* feature/add_specs:
  add migration specs
  add controller specs
add code climate badge
shows schema
add schema, table specs
fix design of notice