Update bonfire_models.md

Just fix a tiny error in find_by method
Merge pull request #930 from modgahead/develop

Update bonfire_models.md
Update developer.php

Tiny fix.
Merge pull request #933 from modgahead/develop

Update developer.php
Fix #932 Resend Activation sends invalid link

Moved the working code from the Users controller's register() method to
User_model (set_activation()) and called it from both register() and
resend_activation().

May need some additional work (like a new name and a better return
type). Currently returns an array containing a message (String) and a
Boolean indicating whether the email library returned an error. This was
done to avoid calling Template::set() directly from the model.
Additionally, the Settings controller should probably be sending the
activation emails as well when users are created from the admin site
area.
Fixed Installer trying to set iterations for user (Column Removed)
Merge pull request #936 from ellahn/develop

Fixed Installer trying to set iterations for user (Column Removed)