Initial commit

This is the very FIRST version of OneManager, a tool
to ease the network and proxy configuration settings
in OLPC Australia.

The follow features are supported:

* Scanning Wifi networks.
* Connecting to WPA2 secured networks.
* Set basic HTTP proxy.

These feature are the building blocks for whatever we
decide to do.

Signed-off-by: Martin Abente Lahaye <tch@sugarlabs.org>