aux and ed25519 self delegation

unsafe ed25519 delegation & ballot details aux contracts (#12)

* added ed25519 delegation contract

* updated .gitignore

* updated gitignore again

* added ballot box aux contract

* removed package-lock and yarn-error

* Rename and slightly refactor Ed25519 self dlgtion

* Update w/ init tests for self-delegation

* fix sv-lib in bb test + implement revert checks

* Add final tests for delegation

* Refactor / reformat BallotDetailsAux a little (ABI CHANGES)

* Fix up ed25519Delegation tests to work

* Rename BallotDetailsAux to match contract

* Implement bbFarmAux2 test section in index - also fix ganache

* Add some extraData to dDeployBallot in ix init tests

* Update tests - fix ganache so it should work on travis

* add mkdir db to doTests.sh (and hopefully fix github-getting-stuck-on-checks-that-have-actually-already-passed issue)

* Update truffle.js with logging