Some extra notes on package installs, primarily for HVM AMI
Resolves #11 and some minor memory updates
Merge dev into feature
Corrected the following
 - tabix_server was set to public instead of private IP
 - Incorrect study override for testing.
Minor edit to aid testing
Merge pull request #12 from ICGC-TCGA-PanCancer/feature/usage_profile

Tested with pulldown x 2, merge and close then add the qc and timing metrics