bump to version 0.1.2
bump to version 0.1.2

There were no changes. PyPi won't let me upload the 0.1.1 version again. So
just release a new patch version.

Signed-off-by: Michael Walle <17b9e1c64588c7fa6419b4d29dc1f4426279ba01@walle.cc>

mwalle/rawsocket,mwalle/rawsocket