nuMedia Service prototype
replaced .browser with .vendor-prefix
* added nuMedia Service
* added nuButtonView, a single button preview for media/images
* updated nuFileChooser to have nuButtonView
Update FC & Button View Integration
nuList added $parsers & $formatters which work similar to ngModel's
nuFileChooser if in single would set value directly to the model no longer an array
add ngFilter directive to help filter data before render for ngModel & nuList
Basic FC TC & probable sauce fix
Merge branches 'media' and 'list' into media
Merge branches 'master' and 'media'