Merge pull request #1 from cdondrup/master

First version of the UOL marathon system:
Merge pull request #2 from cdondrup/master

Added twitter functionality for interactive map and control card reader
Merge pull request #3 from cdondrup/master

Adding launch file
Merge pull request #4 from cdondrup/master

Removed some js dependencies that could not be found. Functionality is n...
Reverted last changes due to not showing the map
Updates and bugfixe from robot