Workaround for travis-ci build fail (https://travis-ci.org/mpratt/Embera/builds/38304323)
- Sometimes travis drives me crazy.. I swear! I havent made changes to the
  HttpRequest class in ages and I never had a problem before...
  Any how, this should make that stupid travis error go away.
- Minor docblock "corrections" so that scrutinizer doesnt complain about
  return types.