Remove ability to use a custom JWT subclass for parsing.
Because the audience can be specified at different locations (ie. at instanciation time and when calling the "verify" method), we need to be sure that the overwritting works like expected. This tests the different possible scenarios for the local verifier.
Switch to Requests
…ying M2Crypto object
This is mainly useful to add support of local certificates.
They were adding needless confusion. Clients should either use the defaults provided by vep.verify(), or use a full-blown Verifier object.