refactored strands_utils to metapackage; new sub-package for previous functionality of strands_utils: topic_republisher
fixed typos; removed dependencies in package.xml
switched pan and tilt idxs
changed topic name to /ptu/cmd
Recreated directory
Creating install targets and fixing dependencies.
Merge branch 'tr' into topic_rep
Merge pull request #9 from cdondrup/topic_rep

Moving topic_republisher from strands_utils to here