Release Preparation, Audit Changes

[martindale]

• Cleans up various documentation (including protocol formalization)
• Replace various non-audited cryptography elements with audited cryptography elements

[codecov]

Codecov Report

Attention: 80 lines in your changes are missing coverage. Please review.

Comparison is base (53c245e) 60.32% compared to head (eb4c07c) 60.35%.

Files	Patch %	Lines
types/token.js	47.32%	69 Missing ⚠️
types/hash256.js	77.77%	8 Missing ⚠️
services/bitcoin.js	50.00%	1 Missing ⚠️
types/federation.js	0.00%	1 Missing ⚠️
types/message.js	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #141      +/-   ##
==========================================
+ Coverage   60.32%   60.35%   +0.02%     
==========================================
  Files          64       65       +1     
  Lines       15487    15667     +180     
==========================================
+ Hits         9343     9456     +113     
- Misses       6144     6211      +67     

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