R# cleanup.
Add tests for nullable.HasValue parsing.
Added new project Pomona.Security.
Added initial classes and interfaces for Pomona.Security. Refactoring to come.
Moved CryptoSerializer to own namespace.
Added placeholder test files with a failing test for security stuff.
Added a test for CryptoSerializer.
Renamed some classes and added some tests.
Bumped version to 0.7.7-alpha1