rails3: fix sidebar buttons on people page

Change-Id: I66199fef9133c3e976448169fd6bfa7652ca03f8
Reviewed-on: https://gerrit.instructure.com/31254
Reviewed-by: Cody Cutrer <cody@instructure.com>
Tested-by: Jenkins <jenkins@instructure.com>
Product-Review: Cameron Matheson <cameron@instructure.com>
QA-Review: Cameron Matheson <cameron@instructure.com>