packages, and dubious tests, relocate nearer to code being tested.
Rewording of some docs, use gopkg for deps in makefile.

Signed-off-by: Silas Davis <silas@monax.io>

switching to circleci 2.0

Remove hell since factored out and improved on in https://github.com/silasdavis/glide-lock-transitive

Refactor templating to util, move 'Solidity' types to a more proper abi package, improve documentation of permissions snatives and improve argument and return types