Merge branch 'release/0.0.9' into develop

* release/0.0.9:
  Bump version number
avoid model attributes overriding
DRY up
Add license to gemspec
bump version
Merge branch 'release/0.0.10'

* release/0.0.10:
  bump version
  Add license to gemspec
  DRY up
  avoid model attributes overriding