Fix bug 821006: add /b/ redirect for firefox/all/.

Also fix expires header override for tabzilla.js.
Bug 827373.

etc/httpd/dev.conf

@@ -1,3 +0,0 @@
-# bug 821006
-RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/all(\.html)?$ /$1firefox/all/ [L,R=301]
-RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/all/$ /b/$1firefox/all/ [PT]

etc/httpd/global.conf

@@ -2,11 +2,15 @@ ExpiresActive on
 
 # bug 827373
 <Location /*/tabzilla/tabzilla.js>
-    ExpiresDefault "access plus 12 hours"
+    ExpiresByType text/javascript "access plus 12 hours"
 </Location>
 
 ## Redirect things to django!
 
+# bug 821006
+RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/all(\.html)?$ /$1firefox/all/ [L,R=301]
+RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?firefox/all/$ /b/$1firefox/all/ [PT]
+
 # bug 803345
 RewriteRule ^/(\w{2,3}(?:-\w{2}(?:-mac)?)?/)?apps(.*)$ /b/$1apps$2 [PT]