Changed restrictScope to restrictToScope

Its called restrictToScope, not restrictScope.

From SharePoint sp.workflowservices.js source:
get_restrictToScope: function
SP_WorkflowServices_WorkflowDefinition$get_restrictToScope() {ULS8GF:;
set_restrictToScope: function
SP_WorkflowServices_WorkflowDefinition$set_restrictToScope(value)
{ULS8GF:;

Same as in the managed API:

http://msdn.microsoft.com/EN-US/library/office/microsoft.sharepoint.workflowservices.workflowdefinition.restricttoscope(v=office.15).aspx
Status.addStatus optional strHtml and atBegining

strHtml and atBegining are optional, this is also how its used in the
documentation:

http://msdn.microsoft.com/en-us/library/office/ff410028(v=office.14).aspx
Merge pull request #3150 from allanhvam/master

SharePoint: updates to workflow definitions and status