Revert "Removed CNAME to verify changes on forked branch."

This reverts commit 392e99d469f69ef6ca3827e2ffbc94878a4ed850.
Added phpDocumentor as a participating project

I would like to have phpDocumentor added to the list of participating projects. With an active development team we intend to have a fair number of up-for-grabs issues and are constantly curating the list.
Merge pull request #84 from mvriel/patch-1

Added phpDocumentor as a participating project
Fixed issue with filters and tags with special characters. Fixed a typo in a test expectation
Merge pull request #83 from Chandu/fix-unescaped-url-fragments

Fix unescaped url fragments (when filtering projects by tag)
Merge branch 'gh-pages' of https://github.com/dahlbyk/up-for-grabs.net into gh-pages