Defer tail declarations

declare() calls that aren't followed by commit() are applied at the end
of the provision script. This change defers those until all provisions
have been executed. This prevents certain cases of preset loop faults.

lib/device.js

@@ -98,8 +98,14 @@ function getAliasDeclarations(path, timestamp) {
       }
     }
 
-    if (prefix.length) decs.push([pattern, timestamp, { value: timestamp }]);
-    else decs.push([pattern, timestamp]);
+    decs.push({
+      path: pattern,
+      pathGet: timestamp,
+      pathSet: null,
+      attrGet: prefix.length ? { value: timestamp } : null,
+      attrSet: null,
+      defer: true
+    });
   }
 
   recursive(path, []);