Add cure heart engage mode :sparkling_heart:
output only uniq series
Build on ruby 2.1.0 !!!!!!!!
Can't retrieve Minitest from Rubygems

via. https://github.com/travis-ci/travis-ci/issues/1800
Use rspec-its, rspec-collection_matchers :golf:
Compare with containing name alias count
Merge pull request #12 from sue445/feature/refactoring_spec

Feature/refactoring spec
Impl Precure::each_series
Refactor: using each_with_series
Write document
Merge pull request #13 from sue445/feature/impl_each_methods

Feature/impl each methods
[ci skip] typo
[ci skip] Write changelog
move examples: rubicure_spec -> core_spec
Count with human name

because Cure Bright and Cure Windy are same to Cure Cure Bloom and Cure Egret
Merge pull request #14 from sue445/feature/modify_all_stars

Feature/modify all stars