Add detection for CSV
Merge pull request #461 from github/detect-csv

Add `csv?` BlobHelper
Detect source files generated by the Protocol Buffer compiler
Merge pull request #471 from mihaip/master

Detect source files generated by the Protocol Buffer compiler
added multi line comment flag for python
Make Gemfile use https://rubygems.org
Merge pull request #477 from liluo/patch-1

added multi line comment flag for python
Merge pull request #479 from CodeBlock/gemfile-https

Make Gemfile use https://rubygems.org
Added support for Unified Parallel C

http://upc.gwu.edu/
Merge pull request #484 from waltherg/patch-1

Added support for Unified Parallel C
Update color for UPC
Merge branch 'master' of git://github.com/github/linguist