Treat caCertificate as pem contents rather than pem filename
Correctly handle "ca-cert" in peerGetConfigBlob
Avoid double-free of bio. Better error code for ca cert parsing failure.
Treat caCertificate as base64-encoded DER rather than PEM

Openssl's pem parser is very picky and requires newlines.
Moonshot-webp eats newlines from the raw xml, requiring
hand-placed '&#10;' for successful parsing, which is
undersirable. So instead use mech_eap's base64Decode() to
convert caCertificate to DER.
Version 0.9.1
Register new RADIUS attributes
fix typo