quietly_check_login()/confirm_login() calls.  Cleans up callsites
(consisting of most of our CGIs), swapping (where appropriate) for calls
to Bugzilla->login. Patch by Teemu Mannermaa <wicked@etlicon.fi>.
r=bbaetz, kiko. a=justdave.

Bug 232749 - fix various charting problems revealed by b.m.o. upgrade, including editing, subscribe buttons and terminology. Patch by gerv; r=kiko, a=justdave.

Bug 226682 - make it possible to edit series. This also changes the Series object interface a bit. Patch by gerv; r=kiko, a=justdave.