gitweb: configurable width for the projects list Description column
gitweb: configurable width for the projects list Description column

This allows gitweb users to set $projects_list_description_width
in their gitweb.conf to determine how many characters of a project
description are displayed before being truncated with an ellipsis.

Signed-off-by: Michael Hendricks <17b9e1c64588c7fa6419b4d29dc1f4426279ba01@ndrix.org>
Acked-by: Jakub Narebski <a6a1517a087f9f64a72f41a0de57ff01fbb0e412@gmail.com>
Signed-off-by: Junio C Hamano <a6723cc3f76163bf7adb636a73ac3b0ceb3e6b9b@pobox.com>

destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git,destenson/git