Added styles to enum
updated allowable resolutions
Updated footage asset object to pay attention to audio_mix attribute as specified in the asset definition.
Merge pull request #5 from animoto/13651_add_styles_to_client

Added styles to enum
Merge pull request #6 from animoto/13880_audio_mix_fix

[13880] Ruby client not honoring "audio_mix='NONE'"
Added Style and Postroll to directing and rendering call
Merge pull request #7 from animoto/15091_DNRJob_Style_and_Postroll

15091 - DNR Job doesn't honor style or postroll
Fix footage spec
Bump version to 1.5.2
Bump version to 1.5.3
Merge branch 'master' of github.com:animoto/animoto_api_client_ruby