Improve formatting in CloudMachineName
More Javadoc, especially for JcloudsLocationCustomizer
Adds JCLOUDS_LOCATION_CUSTOMIZERS_SUPPLIER

Point config to a class implementing
Supplier<Collection<JcloudsLocationCustomizer>>
Adds customize(.., Template) to JcloudsLocationCustomizer

For use when subclasses want to access the template's location as well
as its TemplateOptions.
Converts tabs to spaces in AbstractSoftwareProcessDriver
Merge pull request #1281 from sjcorbett/security-groups

Extends JcloudsLocation customisation hooks
Bump MySql version to 5.5.37, from 5.5.35
Fix MariaDbSshDriver.getStatusCmd

- when executed from ssh-feed for service-up, it was not running in
  the $RUN_DIR so failed. Now uses the fully qualified config-file path