updte package.xml
moving help manager back to monitored navigation.
Making interfaces for adding and removing human help interfaces similar to the ones for adding and removing recovery behaviours
removing debug print
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_navigation into hydro-devel
load human help interfaces from yaml config
adding speech and screen helpers to the strands config yaml
Merge branch 'hydro-devel' of https://github.com/Jailander/strands_navigation into hydro-devel
moving strands specific mon nav launch and config to recovery behaviours
AskHelp service now uses string to identity failed component (so we add help for new components more easily)
update README. Please read
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_navigation into hydro-devel

Conflicts:
	monitored_navigation/launch/strands_monitored_nav.launch
Merge pull request #115 from BFALacerda/hydro-devel

adding/deleting ui helpers now follows the same structure as monitor/recovery states