AstBuilder: create DesignScript AST for Dynamo graph
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Generate 64bit image for DynamoSandbox
Merge remote-tracking branch 'upstream/master'
Code refactoring to follow naming convention
Generating AST node for DoubleInput
Generating AST nodes for add/sub/mul/div nodes
Build partial function for all kinds of binary expressions
Implement CompileToAstNodeInternal() for more nodes
Generate AST nodes for some math functions
Merge remote-tracking branch 'upstream/master'
Remove AstBuilder.BuildFunctionDotCall
Update DesignScript libraries
Merge remote-tracking branch 'upstream/master'
1. Refactored "CustomNodeManager.GetDefinitionFromPath" and "DynamoModel.OpenWorkspace" methods.
2. Added "Dynamo.Nodes.Utilities.PreprocessTypeName" method to preprocess type names coming from older DYN files.
3. Added "Dynamo.Nodes.Utilities.ResolveType" method to help resolving type given its fully qualified name.
4. Added 15 test cases to fully test these two new utility methods.
5. Added "UtilitiesTest.cs" file to "DynamoCoreTests.csproj" project.
Code clean up and adding comments for AstBuilder
Code clen up for NodeModel
1. Removed Dynamo.2012.sln, UndoRedoRecorder.cs and FScheme.2012.fsproj (not meant to be pulled)
2. Rolled back relevant references (in CSPROJ) to the above files
Merge pull request #415 from Benglin/refactor_ws

Refactored "GetDefinitionFromPath" and "OpenWorkspace" methods