Python-hpilo

* update_rib_firmware now accepts firmware version numbers and will install the
specified version
* xmldata now respects timeouts and refuses to use a proxy
* Several small bugfixes

Backward incompatibility note: update_rib_firmware accepts a callback that gets
called with progress updates. The messages this callback gets have been
simplified an no longer contain LF or ANSI characters, all responsibility for
correct presentation now lies with the progress callback.

* Deal with backwards incompatibility in import_ssh_key

* Brown paper bag release, 2.6 did not update the version

* Add an xmldata call, which is not actually using the XML api but parses what
a request to /xmldata?item=all returns.
* Support for structured arguments in the command-line tool
* Several bugfixes and new calls and new arguments to existing calls

* hponcfg can update firmware, so make the ILO_LOCAL support in hpilo.py
support this as well

* hpilo_ca supports ilo4+ as well