Add --wide option to show-connections

This adds the --wide (-w) option to show-connections, and also makes
it so both --wide and -w are acceptable for show-queue.  In addition,
the options for show-caches, show-connections, and show-queue have
all been documented accordingly (though, show-caches is a little
different in its behavior).

Change-Id: I6adee795763bda9533c3700216695945d8bb7af8
5 files changed