Add servo build support
Merge pull request #1 from brson/master

Update to upstream, incorporate servo-specific build files
Merge remote-tracking branch 'brson/upstream'
Fix check target
Merge pull request #2 from brson/master

Fix make check
Merge remote-tracking branch 'chrismorgan/master' into HEAD
Merge pull request #3 from brson/master

Merge with upstream
Merge pull request #12 from brson/master

Basic DNS and a parser workaround
Merge remote-tracking branch 'chrismorgan/master' into HEAD
Fix clean target