Combined CSS into LESS compilation. Removed a 404

When you include a .css file in LESS compilation, the
LESS-compiled css will just reference the .css file.

The way this was happening caused a bad HTTP request
to be sent for the referenced .css file, creating
a 404 error.
Changed pic of James to jpg. Saved bandwidth.
Added a nice image header
Replaced 3 biggest PNGs with 75% compressed JPG
Removed big PNGs from _site
Made jumbotron font color black
Changed URL paths to new JPGs
Removed commented CSS file from template
Added conditionals to thumbnail right include
Turned new interface into the main page
Updated _site with index move