Added all Section 4 Level 1 & Level 2 items from https://benchmarks.cisecurity.org/tools2/ubuntu/CIS_Ubuntu_12.04_LTS_Server_Benchmark_v1.0.0.pdf
Rearranging order of tasks to match CIS benchmark order
Merge pull request #3 from waveaccounting/ubuntu-support-section4

Added all Section 4 Level 1 & Level 2