Fixing inclusion of fileDesc in PASS_THRU_OPTIONS, which results in a policy error when set. (Because fileDesc wasn't actually passed through, when it was set as an option a policy was automatically created which did not reflect the post vars sent to S3.)

Removing junk files (.DS_Store)

Adding .hgignore

Updated README to refer to sample app

Noting jQuery requirement.

URI encoding fix

Remove unneeded imports

minor edit

Formatting tweaks.

Initial import.