Added .gitignore
Modified solution to enable Mono compatability

- Removed incompatible Mono elements
- Fixed some typo’s in the solution file
Added Test project (NUnit)

- Integrated NUnit for this
- Including basic unit tests
Updated NUnit and added FluentAssertions
Fixed tests after latest updates and conversion to NUnit
Merge pull request #1 from hanssens/mono-convert

Merging "mono-convert" into "master"