Changed action name

to make it different from uploader.html
Changed action name

like in manifest.xml to make it different from uploader.html
Added Plugin Parameters

for runtimes, max_file_size, chunk_size
Added configuration parameters

Added configuration for runtimes, max_file_size, chunk_size through parameters defined in manifest.xml
Deleted strange action call to $.get(upurl);
Merge pull request #781 from GeraldST/develop

Pluploader Plugin Fix, by Gerald Stockinger