Migrated Test Cases by changing there evaluation from FScheme to DSEvaluation.

Current status of NUnit results after migrating test cases.

Total: 541
Errors: 66
Failures: 160

Pass: 315
Merge pull request #14 from riteshchandawar/TCMigration

Migrated Test Cases by changing there evaluation from FScheme to DSEvaluation.
Merge branch 'CrossFade' of https://github.com/Benglin/Dynamo into CrossFade