Added some saga pictures for SMatrix
English editing
Removed Original SI Getting Started Article

This article was replaced with a refreshed on with a the name
getting-started-overview.md.
Added SM pictures
Merge branch 'master' of git://github.com/particular/docs.particular.net

Conflicts:
	Content/ServiceMatrix/images/servicematrix-serviceinsightmessagewindow.png
Added SM and SI document to index
Updating Index for SM
Added SIinsight and Smatrix iteraction to the menu
Merge pull request #267 from jdrat2000/ServiceMatrix-Saga-Doco

Updated ServiceMatrix Menu
New saga article for ServiceMatrix
Create Plugins.md
Update Plugins.md
Update Plugins.md
Update Plugins.md
Update Plugins.md
updated intro paragraphs
updated saga audit phrasing
Progress on Saga and update to SI integration
English editing
Draft of Sagas in SM