Fill UV islands, Mask islands.

[Agilethief]

So after reading through the threads here I know that a "Fill" function is coming.
A few features that would be great would be:
- Mask based upon uv islands
- Mask based upon select geometry
- Restrict painting to only the current uv island (so the brush won't bleed over edges, could be done via masking)

[Agilethief]

I may as well put some other suggestions here.
- A line tool, for drawing straight lines.
- A hotkey to restrict the brush movement to an axis (like holding shift in photoshop will lock the brush, making lines very easy to draw)