Replaced home page with CV

Created a home page for my CV. Previous home page becomes portfolio.html
Modularised CSS files

Split Vertical Rhythm into Styling and Blocks CSS files for easier
maintenance and customisation. Vertical Rhythm now becomes a base file
for a multitude of styles and designs
Splitting modularised CSS files on home page
Vertical Rhythm CSS now modularised

Only contains styles for typographic measurements including a baseline
grid
Merge branch 'gh-pages' of https://github.com/theopposablethumb/Bren-Portfolio into gh-pages

Conflicts:
	stylesheets/verticalrhythm.css