Initial attempt at per-host logs
Merge branch 'develop' into feature/jmg_separate_logs
Updating logging changes to latest develop branch

I want to avoid the merge weirdness I had in the past, where changes were overwritten.
Merge branch 'develop' into feature/jmg_separate_logs

Conflicts:
	vagrant_cluster_launch.pl
Merge remote-tracking branch 'origin/feature/jmg_separate_logs' into feature/jmg_separate_logs
Merge pull request #11 from SeqWare/feature/jmg_separate_logs

Re-enable logging (to separate files for each machine).  I'm (Brian) now launching a host on AWS to test to see if this works OK.  Looks like a very small change so I'm going ahead with the merge.