Test case changed after removing of all empty code blocks
empty code blocks were being allowed... now no more
MAGN-882 Fixes "Pressing Escape, first double click did not create CBN"
Also changed Double Click Time to Windows Mouse Settings on Mouse Click
Watch node implementation for DS Nodes

1. BuildAst methods just returns a simple assignment for the input node.
2. Registers PropertyChanged notification for this node.
3. When "IsUpdated" property of this node is changed, it dispatches the
AstNode processing for it's input node.
4. Using MirrorData it populates a WatchNode instance for the given
node.
Merge branch 'ChocoButter' of https://github.com/ikeough/Dynamo into ChocoButter
multiple input connection creation fix
Input names to short var names as well
Array reference problem
 Multiple inputs from same veriable readded to dictionary
Merge branch 'ChocoButter' of https://github.com/ikeough/Dynamo into ChocoButter
Merge branch 'ChocoButter' of https://github.com/ikeough/Dynamo into ChocoButter
Ensure that watch and watch3Dd nodes are available

Added [IsDesignScriptCompatible] attribute on Watch and Watch3D nodes,
so that they are available in library view and search.
Updated Math.dll with static class Math

So that no constructor is shown in Dynamo.
Rewrite CheckIsDoubleClick for clearer intents.
Merge pull request #852 from l2obin/MAGN-882

MAGN-882 Fixes "Pressing Escape, first double click did not create CBN"
Merge pull request #856 from ambarish-prakash/CBNDefects

Cbn defects
Merge pull request #861 from sharadkjaiswal/ChocoButter

Watch node implementation for DS Nodes
Merge pull request #875 from riteshchandawar/ChocoButter

Added 3 test cases generated from defects.
Fix library loading issue in new sessions
Implemented DSMaterial