Better scripts, testing-in-project improvements, and readme updates

- Use bin-debug as the location for all project-only testing.  Killed off bin-release, as it didn't make a lot of sense anymore to have this as well.
- Removed setup.sh, which isn't really needed now that Video.js isn't being pulled in to video-js-swf.  The part of setup.sh that's still needed was put in the README.
- Change build.sh to copy a Flash-specific test file and the latest SWF into video.js/dist
- Change test.sh to try to run both the unit and integration tests
- Fix the main integration test file to point to the right swfobject.js file, a fix that Jim W really found.  So they run by default now.
- bin-debug now has a testing file, index_full.html, which was developed previously for testing the video-js-swf project.  It's a pretty nice way to do all sorts of sanity checks without bringing in any of the main video.js project.
- bin-debug also now has a second testing file, index.html, which is a stripped-down version of index_full.html.  I created this version so that you don't have to click on four buttons to see a video play.  It also really simplifies the wording on the page so that it's just focused on video playback.