[PATCH] Log, annotate and diff use an environment pager if available

[Adrian Buehlmann]

See also http://www.selenic.com/mercurial/bts/issue613

"hg log should show per page"

Created on 2007-07-03.14:20:06 by riteshsarraf
last changed 2007-08-05.01:17:54 by riteshsarraf