Update RegEx link from Python docs
Merge pull request #1 from kevinSuttle/patch-1

Update RegEx link from Python docs
Colourize listings from `mount'
Do not spill colour from the `-o' option in `gcc'

The `-o' rule for gcc was a bit too greedy, matching everything
until the *last* word boundary.

Simply match non-space chars instead.
Colourize listings from `df'