Round 2 EKF hardcoded to scout_1

at this point we don't care but will need to fix it for finals 

will get error
```
RLException: roslaunch file contains multiple nodes named [/robot_localization_ekf_node_odom].
Please check all <node> 'name' attributes to make sure they are unique.
Also check that $(anon id) use different ids.
The traceback for the exception was written to the log file
```