Formatting changes
Database fixes and updates

* created a test script
* fixed some errors in stored procedures
* introduced 3 new procedures
	- add to roster
	- get groups
	- get most recent prompt & response
Implemented super basic prompt/response

* still need to write a log-in
* fixed some issues with constructing objects from result sets
* models are simpler now
	- no more references to other models
	- fields are the same as db columns
	- constructors just grab all the data