Use CodeMirror from a CDN
Rename history object to commandHistory, to avoid collision with window.history
Fi arguments to initMouseEvent for Firefox
Add in a charset declaration
Add in TogetherJS support
Add polyfill as a submodule
Update README for polyfill submodule
Tweak presentation of Collaborate UI
Fix #24, move state get/set to getstate/setstate.
Add arrow characters as commands
Merge pull request #25 from ianb/master

Fix #24, getstate/setstate; add arrow commands
Add Unicode arrows to CodeMirror mode
Simplify lexer regexes
Fixed typo (missing 'http:')