Updated some of the colors to reflect GitHub's current color scheme.
Fine tuned some PHP and Python specific quirks. Resolved the differences. Should be closer to current GitHub color scheme now.
Set support.function.construct back to bold #000000 after accidentally removing in last commit. This fixes the array() construct in PHP, among others.
Merge pull request #5 from primitive-type/updated-colors

Updated to highlight a few more language constructs in GitHub style