code: function deleteNode(node, immediate, callback) {
    node.localActions = {delete: {
      remoteId: node.remoteId,
      actionInitialized: new Date(),
      immediate
    }};
  
    syncDb.update(node._id, node, callback);
  }
docs: Sets the local action to delete for a given node
  
  @param {Object} node - node from database
  @param {Function} callback - callback function
  @returns {void} - no return value