Patched jQuery to fix an error with addon validation.
Last.fm expects the song durations to be integers

Noticed this minor bug when Last.fm kept returning this error:
{"error":6,"message":"duration is not a valid integer: 216.527","links":[]}(cherry picked from commit c0fb65f6e3daafd9d50d1b522bf192937a85ed2a)
Bump to version 0.6.10-dev