Adding a hook so other module can react to a vote

If the drupalit was using module_invoke_all('drupalit') when a vote is casted, other module could be notified of a vote and react to it.

Other modules would simply have to implement a hook_drupalit($nid, $data) function to do whatever they want when a user votes.

For example, the userpoints_contrib module could have a module that give points to users which votes on a node using drupalit module. I wrote such module but I cannot contribute it back unless the drupalit module uses a hook.

Here's my proposed solution (attached).

What do you think?