#282 - use a default serialVersionUID for GeneratedResource
(cherry picked from commit 94952bf06860cd0fdcb21558df8f66a69b624c9c)
#282 - undo GeneratedResource implementing Serializable as that causes everything to break down in regards to caching resources to disk
#283 - Alert the user better when there has been an error after saving an entity in the admin
Merge branch 'BroadleafCommerce-3.0.x' into develop

Conflicts:
	common/src/main/java/org/broadleafcommerce/common/resource/GeneratedResource.java