Added the correct API docs link.
Added Sandcastle project for API docs website creation.
Improved API docs generation.
Prevent the API docs project from being build automatically, so AppVeyor doesn't have failed builds.
Added missing API docs.
Made interfaces more .NET style by using properties instead of read methods where appropriate.
Add reading a Link from JSON.
Completed JSON reading, including tests equal to the Java implementation.
Added tests for Double's NaN, -Infinity and Infinity.
Updated license.
Lower visibility for interface implementation classes. Interface instances can be created by using the TransitFactory class.