Renamed iterator to avoid collisions with parameter names
Use a more detailed error message with information about the ROS naming conventions
Merge pull request #26 from ros/fix-set-params-names-6

Renamed iterator to avoid collisions with parameter names
Reenable tests, updated configuration for Hydro, split cmake module to support calling generate_dynamic_reconfigure_options from dynamic_reconfigure's source.
Added simple Python client test
Added test for issue #6