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
catch raised exception on lost hub, closes #251.
catch another redis hub disconnection bug, #251.
catch a gateway shutdown exception from httplib, closes #252"
Merge pull request #253 from robotics-in-concert/indigo

Gateway exception handling on shutdowns
catch a gateway NoneType problem when shutting down.
flips without using redis pubsub. better for synchronization if network connectivtivity fails. closes #237
in-process commit for flip encryption
encryption implemented. needs a bit of old-fashioned testing
everything seems to be working without encryption
added a simple singlehub script for old-school dual local gateway testing
encrypted flips through redis entries for easier synchronization are now working. closes #237 (encryption side issue)