Merge pull request #3 from spil-dennis/spil

CHANGE Removed restriction on query string parameters
Use webmachine from spil fork
CHANGE allow invoking rpc functions by GET request + json body in body qs parameter
FIX piq definition for plain/text content-type
CHANGE toggle display of definition by setting env parameter
FIX only response with json on get request. (Only thing we support)
FIX old body fetching behaviour for anything non GET
Merge pull request #4 from spilgames/spil-rpcget

GET RPC requests
FIX webmachine uses a different return format for get and post.