✓ Removed "venkman" from the list of reserved names (ops)

✓ getAddonByID() may return an invalid pointer when there is no such add-on, these should now be show as well.

v1.3 changes:

✓ Added Compatibility with Thunderbird 5.* and SeaMonkey 2.1+

✓ Added "installedDistroAddon", "modern@themes", "input", "lastPlatformVersion", and "ui" to the list of reserved names.


v1.2 changes:

✓ Added "checkCompatibility" to the list of reserved names.

✓ Added ToolBar Button.

✓ Some little code optimizations.

✓ Entries are sorted alphabetically (except for those dinamically inserted based on their ID, which are always added at the bottom)
✓ Fixed Warning: WARN addons.manager: Exception calling callback: TypeError: x is null
✓ Added "change" to the list of Reserved names