Force web request to reeexecute.
Fix web request migration.
Added Revit test for Defect MAGN-2576
Added test case for defect MAGN-2566
fix the migration path in order for the samples to work
Added test case for defect MAGN-2363
Fixed few old failing test cases.

As Jenkins reporting some failures from so many days as no one was looking at it, so I updated few and marked few as Inconclusive because we have not migrated StingCase node.
migrate the xyz grid
Add two simple tests for web request.
Add exception handling around loading the xmldocument from updatemanager.
Merge branch 'master' of github.com:DynamoDS/Dynamo
Migrations for Area, Length, and Volume.
Add UnitsUI for Length, Volume, and Area inputs from string.
Merge branch 'master' of https://github.com/ikeough/Dynamo into MasterNew
Add  missing .dyn files for tests CBN_Geometry() and CBN_Range_1300
And fix the verification by chaning the guid and asserts.
Folded multiple line statements into single method call for dummy node verification.

Elllensi has already added method in base class so I used the same.
Migration for LoftForm

- Migrate LoftForm to Form.ByLoftingCurveElements instead of
Form.ByLoftingCurveReferences
- We don't have nodes that return CurveReference, so we don't need
Form.ByLoftingCurveReferences.
Merge pull request #1547 from riteshchandawar/MasterNew

Added Revit test for Defect MAGN-2576
Merge pull request #1553 from Zhengzi/Samples

fix the migration path in order for the samples to work
Merge pull request #1558 from monikaprabhu/newBranch

Add  missing .dyn files for tests CBN_Geometry() and CBN_Range_1300