… editor.

…iptor so that if the key is empty, it can check to if it's because the key was '-'. There are many ways to enable '-' as a keyboard shortcut, but this seemed by far the least intrusive.

…e to allow pre tags to inherit line-height (and hense, easier to change dynamically).

… pre tags. This is required to handle a CM/bootstrap integration issue, and is fixed in the most recent version of CM, so this can eventually be removed.

…w inline editors resize exactly as their containing editors do.

…criptor to _normalizeKeyDescriptorString.

…the Editor itself.

- Added validation to make sure we're only operating on fonts specified as px or em.
- Made the minimum font size check more robust.
- Changed the arguments to _adjustFontSize from "up" and "down" to 1 and -1.
- Replaced document.createElement with some jQuery magic.
- Moved some editor refresh logic into a function inside Editor itself.