This PR is the beginning of distributed query work. For now we are focusing on using the distributed query subsystem to retrieve the basic configuration information (currently just platform), and run the label queries.
A mockable clock interface is also added to the service struct, allowing us to inject a clock as a dependency, and write unit tests that can control the time.
* i like how I wrote this to never call svc direcly
* rename func
* apparently not everywhere
* add service method for authenticated user
* oops forgot to check this in
Closes#144#145#160
Implements PATCH method on user and endpoint middleware for authnz
Implements `reset_password` (with token) and `forgot_password` endpoints
Added godoc comments for UserService interface
Shift to using testify/assert in test code
Multiple fixes/changes to the UserService API
This PR refactors most of the codebase to use the new config patterns implemented in #149. Now the core service keeps a copy of the KolideConfig struct, and service methods can reference the configuration in that struct when they need it. The most significant refactoring is in the sessions code, separating the business logic from the storage layer.