Beginning to port @meyerj's work from the gazeboactivity
rtt_rosclock: Updates to simulation clock facilities
rtt_rosclock: Updating rtt_rosclock header
rtt_rosclock: Some fixes, re-adding licenses
rtt_rosclock: Incorporating gazeob activity for merging
rtt_rosclock: thread class building
rtt_rosclock: activity class building
rtt_rosclock: splitting up SimClockActivity and SimClockActivityManager
rtt_rosclock: Adding documentation
updating main readme
rtt_rosclock: Missing activity manager files
rtt_rosclock: Fixing SimClockActivityManager constructors
rtt_rosclock: Fixing SimClockActivityManager constructors x2
rtt_rosclock: Also disabling equals for singletons
rtt_rosclock: Refactoring / fixing issues mostly related to old double-based time measurements (tested with gazebo)
Fixing missing catkin_package() call when using catkin_add_gtests
rtt_ros: Commenting out garbage
Cleaning up CMakeLists.txts
Update README.md
Update README.md