Added comment on ArcGIS app in Windows Store
Enhanced contribution guidelines
Allow MeasureCompletedEventArgs.Geometry be result of RequestShape regardless if polygon formed. Suspend clearing of graphics and display until first vertex is committed. Removed renderer from MeasureLayer and instead assign symbol on graphics so when MeasureCompleted is handled, vertices and polyline can also be added to layer.
Updated check for MeasureCompletedEventArgs to be else if since it would be one or the other event raising UpdateMeasureArea.
Merge branch 'master' into v.next
Merge pull request #46 from Esri/jNery/issue35_MeasureCompletedGraphic

J nery/issue35 measure completed graphic
Merge remote-tracking branch 'origin/v.next' into jNery/issue28_ToolTipOnTrimmedTitles