RFS: ruby-grape-msgpack ruby-websocket-parser ruby-httpclient

[Hleb Valoshka <375gnu@gmail.com>]

Hi team.

Please review and upload the following new packages:
 - ruby-grape-msgpack
 -  ruby-websocket-parser

They are dependencies for berkshelf dependencies.

And review and upload to experimental new upstream version of ruby-httpclient.

Then if your package depends on ruby-httpclient please try it with
this new version. I tried to rebuild some packages to run their
testsuite but ruby-webmock's testsuite needs to be updated for rspec3
(or it should be updated to 0.21) and rhc and mickutter have no
testsuites (or don't run it).