Remove unused code from dev script

Change-Id: I8e1aa58d798ea1c329d105afef76421a7a8ee1d7
Give exec permission to edit newsreel and exams

Change-Id: Ice94d9d397a80b54ae69f6c05a7ac3704c595964
Add images to achievement detail page

Users' images are included next to their names on the page where all the users
who have an achievement are displayed. It also displays context data as well.
It also corrects an error made in my last commit where injuries were private
as opposed to secret.

Change-Id: I7b152e0a87ab6298c72cc41e2e2435f3343b1aff
Add view_comments permission to current officers

- Comment out unused links in navbar
- Fix event permissions in event detail view

Change-Id: Ia6060a8f1da21f9f7625e99cc90dd328cffc6aa4