Migrate Slice Empyt IsEmpty Join and First Nodes
Merge branch 'Migration' of https://github.com/Benglin/Dynamo into Migration
Add Migration for List Nodes
Add the assembly wil "DSCoreNodes"
Merge branch 'Migration' of https://github.com/Benglin/Dynamo into Migration

Conflicts:
	src/DynamoCore/Nodes/dynBaseTypes.cs
Merge pull request #6 from Zhengzi/Migration

The changes look good in general, we will have to address the generic template type as argument in the future, but that's another story for another day :)