massive homepage update

- refinement of navbar
- add logo to navbar
- reorder links in navbar
- establish standard color scheme
- [ ] left to do: complete implementation of new color scheme
- add modal on hover over logo that explains what the logo is
- revise gcalflow styles & formatting (still in progress)
- adds jquery.ba-dotimeout.min.js to handle timeout on logo hover
- includes lots of styles updates to main.less — these need to be
ironed out later
deletes an accidental semicolon
adds electrophoresis project page
first content commit for about page

- also changes from jade to markdown
adds lesshat library; is currently unused