Merge branch 'release/0.0.7'
Added constants for public and private keys
Code cleanup. All constants in one place.
Merge branch 'feature/constants' into develop
Releasing 0.0.7.1
Merge branch 'release/0.0.7.1'
Removed reference to Forwardable
Merge branch 'hotfix/0.0.7.2'
Version bump!
Don't need curve accessors for coin-specific stuff