Unset force reexecute if watched elements not modified or deleted.
LibraryServices.libraries replaced to Dictionary<string, SearchModel.ElementType>
Removed unnecessary code
Add two tests.

These tests ensure that the graph stays in sync with the model by
continuously deleting elements in the model and checking the counts
against what is expected in the graph.
Add more test cases
Emit replication guide for char
Get replication for all cases
Add test cases for getter
Disabled CustomNodes.ReduceAndRecursion as it hangs NUnit test run
Merge pull request #2704 from Benglin/master

Disabled CustomNodes.ReduceAndRecursion as it hangs NUnit test run
Fix regression
Merge branch 'master' into gc
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Remove callsite gc root
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into Sitrus
Merge pull request #2650 from ke-yu/gc

Mark and Sweep implementation - part 2
Created AssemblyGenerator project that help us to generate the AssemblyInfo shared between project
Merge branch 'master' of https://github.com/DynamoDS/Dynamo
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into ApplyUpdate

Conflicts:
	test/Engine/ProtoTest/LiveRunnerTests/MicroFeatureTests.cs
created CustomNodeIcon on StartPage