Departments need phone numbers

[inghamn]

We need to move the department information out of the Event class.

This might mean we go as far as creating a local database table for them. However; we could possible live with a configuration variable in site_config.inc

[inghamn]

It really depends on who we want to grant permission to edit department information.

If it's just a system admin thing, we can probably just use configuration variables.

[inghamn]

I pulled the departments out into the site config. However, now I'm not even sure if we want to use the newly available phone number fields. It might be best to leave that text in the description, having employees type it each time.