What works :
* the plugin in general and its structure that was inspire by the default uploadify module and by the html_uploader
* it does replace the default uploader upon install
* re-use the same form to upload files
* Use HTML5 and Flash (for now can add other backend if useful)
* Reduce image to a selected size
* The file selection button is mapped to the module
* Once selected uploading start automatically as well as the image size reduction
* Display selected files and upload status (text only for now)
* Change the status of the button at the bottom of the form depending on the upload status
What doesn't work yet:
* actually adding the photo to the album (made some network capture with uploadify POST to try to reproduce it)
* "Cancel All" button isn't currently stopping the upload
* Dynamically display the upload process like the uploadify module
