Temporarily suspend the supply of upload speed notifications
Removed the buffer size setting, and the timeout
Attempted to fix a logic bug in reporting the upload speed figure (using the client-based tests)
Fixed upload speed measurement, by temporarily removing the LocalBroadcastManager notifications; this boosts the reported upload speeds considerably
Removed the forcing of upload send buffer size to 32K bytes, as this caused an under-reporting of upload speed.
Removed some debug log from HttpTest loops, and commented-out some WIP notification code that could affect performance.