Add --all option to create an HTML file for each prefix. #1365
Merge branch 'develop' into wtstats-changes
Accept either files or a directory for the list of stat files. #1365
Merge branch 'develop' into wtstats-changes
First pass at adding groupings for stats. #1365
Make file list processing a little more Python idiomatic.
Merge pull request #1411 from wiredtiger/wtstats-changes

Wtstats changes