fixed 180upload, hugefiles, and vidplay

All 3 of these plugins are broken. They basically had two or three problems. The first, and biggest, problem was the progress dialog mixed with the custom captcha dialog was causing a hard crash in XBMC. In my case, I had to kill -9 XBMC anytime I tried to use one of these plugins.

The 2nd problem was the solvemedia captcha has changed and requires additional data to post correctly. I fixed that as well.

The 3rd problem was vidplay now uses jsunpack, so I added that in.

I also added recaptcha to vidplay. I haven't seen it pop-up but didn't see any reason to leave the code out.

All 3 work pretty reliably for me now.