[PATCH v5] add support for user-specified files & directories to ignore

[Austin Clements]

Quoth Tomi Ollila on Feb 02 at  7:57 pm:
> A new configuration key 'new.ignore' is used to determine which
> files and directories user wants not to be scanned as new mails.
> 
> Mark the corresponding test as no longer broken
> (test from id:"1328105573-4626-1-git-send-email-pieter at praet.org" ).
> 
> This work merges my previous attempts and Andreas Amann's work
> in id:"ylp7hi23mw8.fsf at tyndall.ie"
> 
> See notes in id:"20120202-new-ignore-1-git-send-email-too at iki.fi"

LGTM.  Needs some news.