Merge pull request #4 from roshanjames/master

Added OCaml perf notes
Merge pull request #5 from roshanjames/master

added link to ocaml perf notes in index.html
Consistency.

Every item in the bullet-list ends with a period. Except the last one
Merge pull request #6 from aaronblohowiak/patch-1

Documentation patch
fixed typo
Merge pull request #8 from roshanjames/master

Patched broken url to eigenclass.org (caml_modify).
cleaned up contribution page
Merge branch 'master' of github.com:janestreet/janestreet.github.com
typo on perf notes
Merge pull request #9 from wang-d/master

typo on perf notes
Merge pull request #10 from roshanjames/master

Several small edits
added an example of patdiff output
Merge pull request #12 from roshanjames/master

Added a subsection on getting line numbers in OCaml asm.
Merge pull request #13 from roshanjames/master

fixed some indentation problems.
Merge pull request #14 from roshanjames/master

fixed some minor typesetting.
Merge pull request #16 from roshanjames/master

added offline pdfs for useful external notes.
setup jekyll
reduce the brightness of the background of code sections
updated notes on pow