Release of JDecisiontable for Microsoft® .NET® 2.1.0

So, here it is: JDecisiontable for Microsoft® .NET® 2.1.0. I used a newer version of IKVM compared with JDecisiontable for Microsoft® .NET® 2.0.1 (7.4. release candidate 0), now it looks and feels better.

Furthermore I updated the documentation (README, LIESMICH, THIRD_PARTY_LICENSES because of IKVM).