Removes prawn gem. Adds Caman and BS slider asset gems
Includes caman, scrollTo and BS slider libs
Adds styles for BS slider
Overrides BS slider and carousel styles
Adds caman and scrollTo jQuery plugins
Removes report pdf. Delegates printing to client
Removes pdf format from show action
Uses hash and partition for attachments files
Removes pdfs directory from autoload path
Updates client app

* Adds slideshow view for report attachments
* Adds filter view for attachment image editing
* Removes shared print view (no longer used)
* Adds attachments thumbnails list
Adds empty index view for attachments
Merge branch 'feature/edit-attachment-image-properties' into develop