Fix the display of static media upgrade instructions in rb-site.

Review Request #3740 — Created Jan. 11, 2013 and submitted — Latest diff uploaded

Information

Review Board
release-1.7.x

Reviewers

Fix the display of static media upgrade instructions in rb-site.

The static media upgrade instructions in rb-site didn't reliably work,
due to the state of the database not being what was expected at the time
when we output the instructions. So now we do the check before the
upgrade process begins.
Created a 1.6.14 site, and then upgraded with this change. Verified that
the instructions were displayed.