CodeCritique? : auth built on Datamapper.

[eluser]CI-Newb[/eluser]
Hello: For the majority of my projects I start with CI, Datamapper, Template & auth functions. I figured I would just create that base package and throw it on github, perhaps others might care to use it and regardless I would love to get some code critique feedback. If anything can be more efficient, best practices, etc.

link: GitHub DM-Auth
Current Functions :
Login
Logout
Password Reset (via link / token)

So if anyone has the time to take a look around at the above functions & provide some feed back / pull requests any help would be appreciated! I'll be updating this often looking forward to some input