Ellipitic Curve implementation of JPAKE (Password-Authenticated Key Exchange by Juggling)

[dawmit]

Took the current JPAKE implementation in Bouncy Castle using prime order groups and adjusted it to work with elliptic curves instead, specifically curves of short-weierstrass form.

I have included and example use case of the ecjpake implementation, as well as test files files.

[dawmit]

Apologies for the messy commits, the last 7 commites are just adjustments to comments. The first 3 commits are the important ones.