Drop http-status usage, Auth docs update (ahmedsakr#84)

Cryptocurrency support for all APIs, including market buy/sell (ahmed…

…sakr#80)

Rename all "WealthSimple" to "Wealthsimple" (ahmedsakr#79)

Convert rejects to errors, include source map in dist (ahmedsakr#78)

Add unit tests for headers module (ahmedsakr#77)

Introduce unit tests for core interfaces with Jest (ahmedsakr#74)

Refactor orders history design to remove circular dependencies (ahmed…

…sakr#73)

Add ESLint, Bump node-fetch to 2.6.1 (ahmedsakr#72)

Internal caching of security information, optional architecture change (

ahmedsakr#70)

Cleanup stale npm scripts, rename conditional to optional features (a…

…hmedsakr#67)