Merge branch 'jflatow-public'

bugfix: node_mon should not start ddfs_get on already_running local s…

…lave

Otherwise mochiweb dies with eaddrinuse, and the local slave node becomes unavailable.

fix typo in administer.rst

docs: added a few more comments about disco.func.reduce2

fixed missing ` in disco.settings docs

add support for read() (without arguments) to comm_curl

Release notes for 0.2.3

Updated release notes, upgraded version numbers to 0.2.2

Updated release notes for 0.2.1

Updated documentation