Adding support for multiple lineComment prefixes
Fixing tests
Allowing setLineCommentSyntax to take a string or an array of strings and adding new test
if live dev page leaves site, then terminate live dev
better way to terminate live dev
Fixes after first review
Fixes after second review and Editor Command Handlers tests
Fixes after third review
Merge pull request #3121 from TomMalbran/tom/line-comment-prefixes

Adding support for multiple lineComment prefixes
only check domain of root frame
Merge pull request #3141 from adobe/randy/live-dev-nav

If live dev page leaves site, then terminate live dev
turning test back on in the integration category
Update README.md

Update list of supported languages as of sprint 21
Merge pull request #3155 from adobe/dangoor/2696-quickopen-test

Turn quickopen test on (in integration category)
Update CodeMirror SHA