README update
ipdb: make up()/down() calls transactional as well
ipdb: keep private attributes in order
ipdb: docstrings
version 0.1.3
netlink: remote I/O

Proxy netlink packets through network using ZMQ. Use two connections:
 * PUSH/PULL — send requests to the server
 * PUB/SUB — receive netlink events

Also:
 * remove socket reference from marshal class
 * private attribute names
netlink: catch interrupts while getting messages

New parameter for netlink.get() method -- interruptible.
Please note, that setting this parameter will cause polling
overhead.

Bug-Url: http://bugs.python.org/issue1360
ipdb: start ZMQ context automatically, if none provided
netlink: docstrings update
netlink: use plain TCP sockets instead of ZMQ
netlink: plain TCP sockets, stage 2

checked with one client
ipdb: remove last ZMQ references
netlink: make some ordnung in connections management
netlink: remove separated server threads
netlink: SSL/TLS support
docs: sphinx docs started
docs: add «not released» note
netlink: iothread improvements

* make iothread possible to handle several netlink sockets
* assign each input socket it's own marshal

prepare iothread for netlink routing
netlink: multiple netlinks for iothread

+ basic routing
ipdb: ignore «permission denied» messages in the main cycle