Filename for calculator
Names as array
wip refactoring file list
Merge branch 'master' into refactor

* master:
  Moved to top level.
Updated usage info
Fix line order
Use new file data for diff
Only diff existing files
Support 3-way diff from git base revision
Doc
Fix "create" - use new file data
Bail if v2 exists
Merge branch 'refactor'