saltstack/salt — pull request #2387 by kvbik (2012-10-29 16:29:46+00:00)
Title: recursive update of rendered and ext pillars

as discussed in #2363 and on irc [1]

[1] http://irclog.perlgeek.de/salt/2012-10-26#i_6102890

this is functional just for ext_pillars now.