Merge branch 'release-0.0.25' into develop
Merge pull request #6 from rbrs/master

Merge old release commits
game will return nil if not found
news will return nil on error
updated gemnasium url
updated webmock
refactored news class
hide error message when trying to delete non existant gem before building [ci skip]
formatting [ci skip]
refactored sale class
fixed sale tests
updated coveralls badge
updated readme [ci skip]
refactored game class
updated games tests, removed unused tests
updated readme [ci skip]
updated readme [ci skip]
bump version to 0.0.26
Merge branch 'release-0.0.26'