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Upgrades:
[Docs] upgrade installation
[Exchange] Add collateral ratio to output
[Transactions] Add Test for Transfer construction
[ExampleScripts] Added a few example scripts to examples/

Fixes:
[Memo] unpad memo correctly
[Cleanup] Lint, tox, coverage
[Docs] Fix typo
[Lint] Fixing some syntax errors
[Transactions] Skip Tests
[Maker] Do not call orderFilled->Cancel+place()
[README] fix pip install documentation