Added all CIS Section 8 Level 1 & 2 tasks & various fixes

https://benchmarks.cisecurity.org/tools2/ubuntu/CIS_Ubuntu_12.04_LTS_Server_Benchmark_v1.0.0.pdf
Worth making the cron timing customizable?

> Note: The checking in this instance occurs every day at 5am. Alter the frequency and time 
of the checks in compliance with site policy.