Merge pull request #9 from BFALacerda/hydro-devel

various improvements
adding mongo logging for backtrack recovery
logging pauses - user taking over with gamepad or pause service calls - to mongodb
small bug fix
moving human_help_manager back to monitored nav
merging nav help speech and nav help screen to a single package
total rewrite of the classes in order to make their addition and removal to monitored nav similar to the recovery behaviours
update dependencies
fixing imports + sending number of fails when asking for help
only say thank you when you're helped
Changed to the correct topic
Merge remote-tracking branch 'upstream/hydro-devel' into hydro-devel
Merge pull request #11 from nilsbore/backtrack

[backtrack_behaviour] Just correcting a topic
renaming smach recoveries package
moving mon nav config and launch files here
using new AskHelp srv definition
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_recovery_behaviours into hydro-devel