- Added internal logging which can help debugging

 - Properly show/remove task panes and invalidate ribbon controls for word
Fixed some compile warnings and formatting
If no assembly is passed to RibbonFactory it should use the calling assembly as a default
Line endings..
Started adding scenario level tests
Introduced TestDoubles project to help with testing Office applications
Updated word scenario to use word facade
Added basic open excel test and test doubles to support it
Merged QuoteGeneratorAddin.Core into main addin project
Moved excel 2013 facade
Fixed compile errors
Fixed up excel 2013 and the custom task pane behavior
Tests around excel
Pushed Word sample.Core into main addin project
Merged powerpoint addin and .Core addin project
Merge pull request #38 from JakeGinnivan/ImproveTests

Improve tests