impl gender selection
add test for 'gender selection'
fix sample data for 'gender selection'
Merge pull request #4 from 2celeb/impl_gender_selection

Impl gender selection
add sample name data
Merge pull request #6 from 2celeb/add_sample_name_data

add sample name data
Fixes #7
Add version badge to README
Add new APIs and refactor
Add new APIs info to README.md
Create CHANGELOG.md
Bump version
Add coverall settings
Add coverage status
Remove rbx-19mode and add 2.1.0 to travis.yml
Add coverall settings