Merge pull request #29 from gestom/master

Works fine on Linda
action server for ptu
package dependencies
updated the PTU action server to check that the desired position has been reacheed using the /ptu/state message
Moving the action file to the root of the package
Action message with fields for various parameters
Added feedback in the ptu action server
action server feedback message
Merge pull request #34 from RaresAmbrus/merge_upstream

PTU sweep action server
new package to monitor the robot and send emails whenever it gets stuck
state shecker node that monitors odometry and sends an email when the robot is stuck
email sending script
Added command line parameters for the state checker script
sending email to multiple receivers
changed the default timeout to 90 seconds
Merge pull request #36 from RaresAmbrus/merge_state_checker

Merge state checker
Update CMakeLists.txt

Bug fix: No include dir needed. Build should wok again.
Merge remote-tracking branch 'upstream/master'
Charging in the dark