Fix for bug 241814: properly trim component fields according to product selection in the request queue, flag type editing, and anywhere else that uses the same code; r=vladd, a=justdave

Patch for bug 233049: Improve error when filtering requests with component not in the selected product; patch by Marc Schumann <wurblzap@gmail.com>, r=vladd, a=justdave.

Patch for bug 192218: Ability to use a hyphen as a way to filter specifically for requests with no requestee; patch by Frédéric Buclin <LpSolit@netscape.net>; r=myk, a=myk.

Bug 250591: Conversion of boolean conditions in SQL statements for better db independence (take 2); patch by David Lawrence <dkl@redhat.com>; r=vladd, a=justdave.

r=joel, justdave
a=justdave

Patch for bug 248001: Conversion of boolean conditions in SQL statements for better DB independence; patch by David Lawrence <dkl@redhat.com>; r=joel, vladd; a=justdave.

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.

r,a=justdave

r=joel, a=justdave

r=justdave
a=justdave

r=bbaetz
a=justdave

r=justdave
a=justdave

patch by joel
r=bbaetz
a=justdave

r=bbaetz
a=myk

r=gerv, a=justdave

2xr=justdave
a=justdave (for commit during freeze)

Fix for bug 98801: Implementation of the request tracker, a set of enhancements to attachment statuses.
r=gerv,bbaetz