Changed sync behaviour, it used to copy images over http interface

now it copies to a local cache and then it copies over storage APIs

- accept all images with or without signatures
- disable sync writing to stdout
- added more logs
- fixed switch statement in routes
- fixed enabling sync multiple times for storage subpaths

closes #266

Signed-off-by: Petu Eusebiu <peusebiu@cisco.com>

examples/config-sync.json

@@ -5,7 +5,7 @@
 	},
 	"http":{
 		"address":"127.0.0.1",
-		"port":"5000"
+		"port":"8080"
 	},
 	"log":{
 		"level":"debug"