functions: performance improvements - LRU & singleflight DB calls (#322)

* functions: add cache and singleflight to ease database load

* runner: upgrade

* deps: upgrade glide files

* license: add third party notifications

* functions: fix handling of implicitly created apps

* functions: code deduplication

* functions: fix missing variable

api/server/routes_create.go

@@ -10,7 +10,7 @@ import (
 	"github.com/iron-io/runner/common"
 )
 
-func handleRouteCreate(c *gin.Context) {
+func (s *Server) handleRouteCreate(c *gin.Context) {
 	ctx := c.MustGet("ctx").(context.Context)
 	log := common.Logger(ctx)
 
@@ -80,5 +80,7 @@ func handleRouteCreate(c *gin.Context) {
 		return
 	}
 
+	s.resetcache(wroute.Route.AppName, 1)
+
 	c.JSON(http.StatusCreated, routeResponse{"Route successfully created", wroute.Route})
 }