fixing for php 5.3 so I'm taking out the trait... lol
fixing another error in php 5.3
adding a tutorial about events in readme
https://github.com/CodeSleeve/asset-pipeline/pull/77
adding back in image tag helper
https://github.com/CodeSleeve/asset-pipeline/issues/78
adding more docs for behavior specs
adding in sprockets_filter for generator
Merge branch 'testing'