Improved asset::prepare
fixed a few typos
Trigger with filename when a file is about to be merged
Emit also the name of the target file
Emit output event, so the listener can modify the reference to the asset
add .min suffix when running on production mode
Added file:output event
Merge branch 'master' of github.com:crodas/SimpleAssetManager into develop
Fixed composer.json;
bump version
Merge branch 'master' of github.com:crodas/SimpleAssetManager
Merge branch 'release/v0.1.2'
Merge tag 'v0.1.2' into develop

Fixed composer from last release