DynamoSliderClass for undo/redo able slider
Replaced "Dictionary<string, object> data" in ModelEventArgs with strongly typed properties
Merge pull request #506 from Benglin/ModelEventArgs

Removed "Dictionary<string, object> data" in ModelEventArgs
Added DynamoMSOfficeTests, First Excel tests, Added Cleanup call to DynamoController.Shutdown
All file reading tests pass for Excel, including empty cells
Update attractor sample
Merge pull request #505 from ambarish-prakash/DynamoSlider

DynamoSliderClass for undo/redo able slider
Complete set of unit tests for excel, enhanced data writing overloads for single, 1d, or 2d data, cleanup excel worksheet before write
Hide Excel window in Unit Tests
Merge branch 'master' of https://github.com/ikeough/Dynamo
Killing excel unit tests until I can figure out what's going on with Jenkins