Update to add support for separate retention for different repo branches
and maxDate / minDate for automatic cleanup /retention of different
branches.
Merge branch 'master' of https://github.com/JFrogDev/artifactory-scripts into patch-1
Add new upload from directory script.  Include example of branch specific
retention.
Merge pull request #4 from brianpcarr/patch-1

Update to add support for separate retention for different repo branches