export an exception that was hiding
a generic find_service method.
find_service moved out to rocon_python_utils
version checker for the redis server in the hub script.
full support for redis 2.6 on ubuntu saucy.
make the code independant of redis server upgrades, changes only needed in .conf files.
utilities broken up and everything updated.
comment added
Merge pull request #250 from robotics-in-concert/indigo

Interactions overhaul