added static library
Merge branch 'master' into Scuttlebutt-master
Replacing NULL check for creation of static dispatch queues with dispatch_once for thread safety.
Added AFURLParameterEncoding parameter encoding to enable placing POST parameters in the URL instead of the body. This is needed to access Yammer's REST API (testing shows that POST parameters need to be placed in the URL, most importantly the access token).
Merge branch 'Scuttlebutt-master'