Timestamps on apps / routes (#614)

* route updated_at

* add app created at, fix some route updated_at bugs

* add app updated_at

TODO need to add tests through front end
TODO for validation we don't really want to use the validate wrapper since
it's a programmer error and not a user error, hopefully tests block this.

* add tests for timestamps to exist / change on apps&routes

* route equals at done, fix tests wit dis

* fix up the equals sugar

* add swagger

* fix rebase

* precisely allocate maps in clone

* vetted

* meh

* fix api tests

api/server/routes_create_update.go

@@ -5,12 +5,10 @@ import (
 	"net/http"
 	"path"
 	"strings"
-	"time"
 
 	"github.com/fnproject/fn/api"
 	"github.com/fnproject/fn/api/models"
 	"github.com/gin-gonic/gin"
-	"github.com/go-openapi/strfmt"
 )
 
 /* handleRouteCreateOrUpdate is used to handle POST PUT and PATCH for routes.
@@ -51,7 +49,6 @@ func (s *Server) handleRoutesPostPutPatch(c *gin.Context) {
 }
 
 func (s *Server) submitRoute(ctx context.Context, wroute *models.RouteWrapper) error {
-	wroute.Route.CreatedAt = strfmt.DateTime(time.Now())
 	wroute.Route.SetDefaults()
 	err := wroute.Route.Validate()
 	if err != nil {