Merge branch 'hydro-devel' of https://github.com/strands-project/strands_hri into hydro-devel
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_hri into hydro-devel
added call to ros_datacentre to make string persistent
Merge branch 'hydro-devel' of https://github.com/strands-project/strands_hri into hydro-devel
Merge pull request #52 from marc-hanheide/hydro-devel

this now also stores the current string to speak in the ros_datacentre for persistency