Small performance issue on storage manager

Hello ! On storage manager "load(keys, clb)" there is an unnecessary Regular expression creation inside a loop that don't need to be there.

Here is the fixed code.

      st && st.load(keysF, res => {
        // Restore keys name
        var reg = new RegExp('^' + c.id + ''); ///////// <<< This originally was inside the next for loop 
        for (var itemKey in res) {
          var itemKeyR = itemKey.replace(reg, '');
          result[itemKeyR] = res[itemKey];
        }

Cheers !