Refactored "DynamoModel.Reset" and "ResetEngine" methods
Merge branch 'ResetEngine' of https://github.com/Benglin/Dynamo into ResetEngine
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into ResetEngine
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into ResetEngine
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into ResetEngine
Merge pull request #2322 from Benglin/ResetEngine

Refactored "DynamoModel.Reset" and "ResetEngine" methods