Small scale integration test

Checks the addition of a single person and reading it from the db in a
few variations
Fixes #18

Added a stored procedure to the database that clears all data.
Merge pull request #19 from Slowking770/Test-setup-Fix

Fixes #18
Added membership indicator to Person

Updated the C'tors and the test setups
Added read methods based on membership

All tests pass.
Merge pull request #20 from Slowking770/Development

Fixes #17