Rewrite for API Samples
Merge pull request #10 from bsvensson/develop

Rewrite CONTRIBUTING.md for API Samples
update sample AttributeInspectorInfoWindowEditable to use fieldClasses ButtonBarField
format
Merge branch '#9/use-new-fieldclasses' into develop
use MyCalendarEditor in the sample AttributeTableSample.
Merge branch '#9/use-new-fieldclasses' into develop
Always set the subdomains on the web tiled layer, even if null
Merge branch '#9/webtiledlayersample-update-subdomains' into develop
Add geometry service to WebMapUtil to support the web map's extent if it needs reprojected.
Merge branch '#9/arcgiswebmap-sample-use-geomsvc' into develop