Remove an officer's ability to edit their title.

This caused issues with officers changing their
titles to something they didn't hold.

ex. The nefarious webmaster changing his title to
emperor.
Preserve year_active in single_profile.html.
Use email instead of name for unicode representation
Only welcome the user if they have a name.
Set email in write in user
Merge pull request #291 from CalPolyIEEE/remove-officer-title-from-profile

Disallow officers to change their titles.