* add signatures, fix process loop bug, move delete to on success
* added tests for signatures
* PR comment updates
* fixed setting reason by default.
* updates for PR comments
* added signed failure when verificationi fails
* moved to sign_test
* fix panic
* removed testplanet from test
* set up redis support in live accounting
* move live.Service interface into accounting package and rename to Cache, pass into satellite
* refactor Cache to store one int64 total, add IncrBy method to redis client implementation
* add monkit tracing to live accounting
