Merge pull request #60 from vrabaud/indigo-devel

fix compilation with gcc 4.9
removing unused include
switch to boost signals2 following ros/ros_comm#267, blocking ros/geometry#23
surpressing autostart on the server objects to not incur warnings
adding needed async spinner for tests to pass, and adding some more asserts
adding version dependency on message_filters for boost signal changeover
updating changelogs
0.5.4
Fix format string
Merge pull request #62 from trainman419/patch-1

Fix format string
Removed AsyncSpinner workaround
Merge pull request #63 from ros/remove-asyncspinner-workaround

Removed AsyncSpinner workaround