drush 7.x-5.3

Changes since 7.x-5.2:

• #1539672 by FluxSauce: Fixed drush make not unzipping files due to mime content type.
• #1515418 by jgraham: More robust test for subtree.
• fix sql-connect test: the order of arguments changed
• #671906: show the password correctly in sql-connect
• #671906: securely pass the password to mysql
• #1565686 by greggles: Added make drush sql sanitize more thorough.
• #1438002 by DrMiaow: Fixed SQL Server implementation of _drush_sql_get_credentials() is using 'server' instead of 'host'.
• #1596916 by helmo: Fixed include-vcs option gets passed directly to rsync.
• #1595182: Enabling or disabling a module on Drupal 6 attempts to enable all modules
• #1594100: Undefined index and variable when disabling a module in Drupal 6
• #1592706: Fix profile variants check
• #1541990 by andypost, tim.plunkett, sun, msonnabaum: Fixed Improve check before calling t() (D8 drupal_container() patch broke drush).
• #1539076 by dman, jhedstrom | zarrex: Fixed drush make overrides modules folder with downloaded modules.
• #1520802: unable to include projects in make file from custom location (Feature server)
• #1580824: drush up downloads unrequested modules when update for specified module fails
• #1587636: Unknown option: --type for watchdog-delete