RegEx Support

[Joystick74]

It would be good if we could use a regular expression to influence the text that should be used for the tab text.

[personalmountains]

I like this, it'll need a bit of work, but it shouldn't be too difficult. My main worry is the UI, because you'll probably want a regex and a fallback if it doesn't match, which means you'll also probably want multiple regexes to try in order of priority to be more flexible. Not sure the simple property sheet design for the options works well with this.

As a bonus, this would also handle #14 by matching extensions.