Merge pull request #95 from kunzel/hydro-devel

make sure to use latest map; add upper bound for sampling goal locations
Fixed data corruption bug
Merge pull request #96 from RaresAmbrus/hydro-devel

Fixed data corruption bug in ftp_upload script
Added two action servers for public engagements deployments.

1. emulates camera sound a a flash using the robot hardware for taking pictures
2. detects intruders by listening to the people perception topics.
Merge pull request #97 from cdondrup/hydro-devel

Added two action servers for public engagement deployments.
added costmap flag to service
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_utils into hydro-devel