Wishlist: Electrum Server (on hold)

[FrancisPouliot]

Code from: https://github.com/kyuupichan/electrumx

This is particularly useful because:

1. Having multiple electrum servers prevents sybill attacks on the network so unlike non-economic Bitcoin nodes honest users running electrum servers is a net public good.

2. Multiple applications are using electrum server as their self-hosted back-end API.

[FrancisPouliot]

Let's do this first #5