Merge branch 'release/v0.2.0' into develop

* release/v0.2.0:
  Add CHANGELOG and update README
  bumps version
Update Gemfile.lock
Remove easy_class_to_instance dependency
bumps version
Update changelog
Merge branch 'release/v0.2.1'

* release/v0.2.1:
  Update changelog
  bumps version
  Remove easy_class_to_instance dependency
  Update Gemfile.lock