Cleanup Test Project

[jaredcnance]

Some housekeeping items:

• Split tests into 2 projects, Unit and Acceptance
• Scrap the test documentation fixture (also update readme) <-- done in feat/core-2 branch
• Consolidate server setup into a TestFixture
• Update CI to run all test projects
• Run all tests on AppVeyor (currently not running any)
• Evaluate solution coverage and add unit tests

see constructor for NoEntityFrameworkTests created in #89 for an example of the kinds of things that should be extracted into a fixture