Minor cleanup for lastvalue widget
Handle gulp build errors
Merge branch 'feature/issue-15-handle-errors-better-in-gulp' into feature/issue-6-flesh-out-lastvalue-widget
Contain lastvalue body in a div
Add a title to lastvalue widgets
Show a diff for lastvalue widget
Add times to the lastvalue widget summary
Clean up value accessing in lastvalue widget
Add a visual indication of the diff to the lastvalue widget's sparkline