Restore "escape" as shortcut to abandon edits

Thus reverting a defensive change back in January:
d72d245523d9dbe235c3158976335e8a41aaa359
Fix vertical tabs in Safari

Current versions of Safari on OS X and iOS are still prefixed.
Fix for running under node-webkit
Change permalink behaviour

Now a link to a single tiddler like http://tiddlywiki.com/#HelloThere
will just open that single tiddler (the old behaviour was to also open
the default tiddlers)
Move "storyviews" filter operator to correct folder