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
Seems like it would be something that will need to be tweaked at some point - I think it makes sense to move it to a `rsyslog_log_files` variable or similar.