Merge pull request #8 from yfyf/fix_cowboy_stop

Fix application:env and stoping/starting related issues
CHANGE allow passing of transport options to cowboy.
Merge pull request #9 from spilgames/trans_opts

CHANGE allow passing of transport options to cowboy.
Accept Piq as input when Content-Type is "text/plain"

Also, make sure frameless Piq is processed correctly. The one case that needs to
be handled specially is when the body is empty.
Merge remote-tracking branch 'anton/master' into bump_piqi_rpc_version

Conflicts:
	rebar.config
	src/piqi_rpc_webmachine_resource.erl