use map in the more standard way
extract method to remove ignored metrics
extract function to diff metrics hashrefs directly
_diff_metrics_hashrefs() now deals with metric names and values, instead of names and metric objects
extract method to return a build's metrics as a hashref of metric_name => value
rename function to better reflect what it does
updated ur submodule to 8d96d64
Merge branch 'master' of github.com:genome/gms-core
Merge branch 'master' of ssh://git/srv/git/genome