Refactoring Apiture sign/validate logic to Notary class.
More sign and validate refactoring.
Added multiple notaries to Apiture.  Removed controller methods.
Removed Rails dependency.
Added time dependency to pick up extensions like .httpdate.
Temporarily removed SimpleCov and other gems to see why CircleCI fails the testing, even though all the tests pass.
Added basic SimpleCov back in.
Dependency tweaks.
Merge pull request #5 from octanner/refactor

Refactor to remove Rails dependency.