Merge pull request #1 from bernardogalindo/develop

Fix gem dependencies
Merge branch 'develop'
Merge pull request #3 from bernardogalindo/develop

Develop
Update README.md

Add travis build badge
Update README.md
add coveralls gem and require in test helper
mover Coverall.wear to the top
set pending to_html to improve algorithm to calculate largest number, add custom palette method and test
Merge pull request #4 from bernardogalindo/feature-coveralls

Feature coveralls
bump version to 0.0.7
Merge branch 'relase-0.0.7' into develop