Bump gem version to 0.2.4

Bump gem version to 0.2.3

Bump gem version to 0.2.2

Bump gem version to 0.2.1

Bump gem version to 0.2.0

Bump gem version to 0.1.4

Bump gem version to 0.1.3

Remove nil parameters on CarrierWave inclusion

Merge pull request #2 from xing/opsidao/new_jpeg_defaults

Allow to pass quality and resolution when including

Merge pull request #1 from xing/opsidao/add_travis

Setup the travis initial build