Remove Google References

This removes most references to Google, with some
remaining since they may point to things which are still
relevant. References to Google Code, Google Buzz and
Google Maps have been removed

plugins/OStatus/tests/MagicEnvelopeTest.php

@@ -27,7 +27,6 @@ class MagicEnvelopeTest extends PHPUnit_Framework_TestCase
     static public function provider()
     {
         // Sample case given in spec:
-        // http://salmon-protocol.googlecode.com/svn/trunk/draft-panzer-magicsig-00.html#signing
         $magic_env = new MagicEnvelope();
         $magic_env->data = 'Tm90IHJlYWxseSBBdG9t';
         $magic_env->data_type = 'application/atom+xml';