Update etchserver.conf parsing

No longer depends on regular expressions, should be straightforward
to extend with additional keys.
Merge pull request #17 from stnoonan/master

Update etchserver.conf parsing
Update source to https
Update to rails 3.2.14
Use a unique pid file for each test server instance

Rails now complains if you ask it to start a new server instance when
there's already one running using the default pid file.