Refs #463. The dropdown items are now the same width as the dropdown.
Refs #463. Implemented iframe shrinking.

That was a lot more difficult than the code reflects.
Stupid IE8 still doesn't work, but we're punting for now.
Also still need to test IE9.
Refs #463. Move iframe load detection outside of the iframe HTML.

IE double-loading is still occuring.
Refs #463. Fixed the IE double iframe initialization problem.
Refs #463. Soon to be dead code for sane, cross-browser height detection.
Refs #463. Add some CSS resets to normalize body margins.
Refs #463. Implemented one-time iframe height strategy detection.
Refs #463. Rely on browser extensions for livereload, instead.

Old IE chokes on livereload. The browser extensions are easy.
Refs #463. Document the still-needed seamless skin enhancements.
Refs #463. Detect unloaded images and update iframe height as they load.
Refs #463. Call postBlockMaybeCreated after a paste event.
Refs #463. Use jquery bind to support old IE.
Refs #463. Re-formatted the default wymiframe styles.
Refs #463. Tweaks based on review. Thanks Kyle!
Merge pull request #463 from wymeditor/issue_463

Some additional seamless skin polish items