Old code cleanup.

Rewrite (groups|skills|languages)/search.

Remove permission denied middleware.

Add trailing slashes.

Fix list_location url regexes.
[bug 846039] Implement 'Stronghold'.
[bug 846039] Return location listing page even when nonexistent country.
Ignore changes to vendor
[fix bug 844162] Redirect only authenticated users to new profile pages.
Merge pull request #429 from glogiotatidis/stronghold

Stronghold
[Fix Bug 851633] Stop tests from making real POSTs to basket
Merge pull request #433 from Sancus/stopcallingbasket

[Fix Bug 851633] Stop tests from making real POSTs to basket
Merge branch 'master' of github.com:mozilla/mozillians