Added all Section 6 items from Levels 1 & 2

https://benchmarks.cisecurity.org/tools2/ubuntu/CIS_Ubuntu_12.04_LTS_Server_Benchmark_v1.0.0.pdf
To further explain; any service controllable by ansible will have an init.d on ubuntu.  Not all services will have .conf files in all cases.  So it seems to make sense to check for the service init.d control script.  This was drawn from the upstream author's conventions, but it makes sense to me also.