network: moves tests to fixtures
Add Justcoin Exchange to README.md
Revert "Add Justcoin Exchange to README.md"

This reverts commit 5ac49374a932bc013cfd89e6057be527acddc55f.
Add Justconi Exchange to projects using
Merge pull request #218 from dcousens/netfix

network: moves tests to fixtures
ECSignature: fixes for canonical signatures
Merge pull request #219 from weilu/utxo

Wallet fee & utxo fixups
ECSignature: compress assertion statement
ECSignature: add missing tests for R,S length
Merge pull request #220 from dcousens/canonical

ECSignature: fixes for canonical signatures
wallet: reintroduce output.to to track spend pending