first stab...
fix some runtime errors
fix (most) tests
fix the remaining failing tests
remove all traces of EntityFramework
Remove obsolete files from the project
Remove duplicate file entry from project file
Merge pull request #218 from adrianbanks/remove-ef

Switch from EntityFramework to Simple.Data.

This pull request removes all trace of EntityFramework and switches the data access to Simple Data. Following this change, a few things should happen:

 - we need to figure out how schema changes will be made, as the EF migrations are now gone
 - the code could do with a possible bit of refactoring, and definitely shuffling around, as the structure is not right