* create datastore package with New func to create a db connection
* separate creating a user object from saving to db
temporarily pass db around through gin context to compile app
main should create the datastore and pass it in to http handler explicitly instead
* create datastore from config params
* move gorm specific code to gorm.go
* re-export app.NewUser
* test new user
* add User() method for getting a user
temporary, the API will improve once I add filters
refactor test func to use sqlite by default and mysql if available
* add save user
* move some users tests to datastore, temporarily remove user tests from app
* add EnrollHost and test
* move enrollhost to datastore
* all enrollment tests now in datastore
* add datastore_test for re-enroll
* it compiles now...
* move other interfaces to models
* start wrapping errors in database error
* add tests for campaign
* move users to package kolide
* move hosts and passwordrequests
* package kolide
* moving all types to package kolide
* making new osquery endpoints use groob's new pattern
