added Mary 5.0
initial release of ros_mary_bridge
removed command line args to work with launch files
added launch file
Update README.md
format python nicely
Merge branch 'ros_mary_tts' of github.com:marc-hanheide/uol-openday-robot into ros_mary_tts
Merge pull request #5 from marc-hanheide/ros_mary_tts

a first implementation of a ROS-MARY bridge, useful to make the robot speak via ROS

This is tested now and seems to work reliably. So I merge it.