added version of 'requests' from https://gist.github.com/schlamar/5080598

fixes https://github.com/kennethreitz/requests/issues/1359
which has not yet been released
migrate slap.py from (httplib, socket, ssl, urllib) -> requests
slap.py: send all POST data as form-encoded parameters
use fe80: addresses for special cases. DO NOT MERGE :)