Converted the token route to use grasshopper-core.
Added another potential grasshopper config value GRASSHOPPER_CONFIG
Removed entity token module. No longer needed.
Removed unneeded modules.
Updated tests to use different response code of 400 for bad requests instead of 500
updated readme docs.
Ported user module to use grasshopper-core.
Updated grasshopper-lib to use grasshopper-core.
Added a longer delay for tests, connection to db was not happening fast enough.
Added dependency to grasshopper-core.
Added back user record that is used in some tests.