Scope binding to object rather than document

All of the other callbacks are bound to the object, changing "s3_uploads_complete" to be consistent
Merge pull request #27 from joshuaogle/patch-1

Scope binding to object rather than document
only need one s3_uploads_complete trigger
pass content to s3_uploads_complete trigger like others
update rails-jquery-file-upload, use new middleware provided for iframe transport
fix encoding issue, fixes #31
encode url parts for IE
re-adds the singular upload_complete event
bump version
Merge pull request #34 from nulogy/master

Re-add the s3_upload_complete event
version update
adds option to remove progress bars for failed uploads
when the file upload info is POSTed to the app, the form AJAX events are triggered
updates the docs for remove_failed_progress_bar
updated docs
Merge pull request #35 from nulogy/add_progress_bar_removal_for_failed_uploads

Add progress bar removal for failed uploads
Merge pull request #36 from elijahsmith/master

Implemented regular rails ajax callbacks on POST to rails server
Update lib/s3_direct_upload/form_helper.rb

Make bucket region configurable
Update README.md

Add region prefix doc to README
Update lib/s3_direct_upload/config_aws.rb