added service
added visualization via markerarray
commands to build service
switched pan and tilt idxs
Merge branch 'master' of https://github.com/strands-project/strands_utils
Merge pull request #19 from Jailander/master

Added a service to save the current values of a parameter into the db
Update README.md

Added info about the required version of pymongo.
Merge branch 'master' of https://github.com/strands-project/strands_utils
Making database path an argument
allowing multiple node instances
making port an optional argument to launch
launch file documentation
Battery check script
Battery check update
Link to the wiki added.
Readme added.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	strands_datacentre/README.md
Merge pull request #20 from cburbridge/master

Making it possible to choose database path and run multiple database servers. Closes #17.
Readme
Merge branch 'master' of https://github.com/strands-project/strands_utils