Adding package to modify the HOSTNAME environment variable and save it in the bashrc under STRANDS_HOSTNAME in a ros friendly way
Update README.md

Fixed type in Readme.
Changed regular expression for modifying the HOSTNAME env var.
Merge branch 'hydro-devel' of https://github.com/RaresAmbrus/strands_utils into hydro-devel
Merge pull request #80 from RaresAmbrus/hydro-devel

Added package to modify the HOSTNAME env var and save it in the bashrc under STRANDS_HOSTNAME in a ros friendly way