drush 8.x-6.0-rc4

The Drush project has moved to Github.. Please see our 6.0.0 release there.

Changes since 8.x-6.0-rc3:

• Use getOutputFromJSON in config test.
• Remove self-update command and associated APIs. I want the flexibility to change Drush 6 release numbering and location when we move to Github.
• Add example values and alpha sort to global options.
• Better error types in policy command.
• Enable php 5.4 testing at Travis.ci
• Skip sql-dump tests under sqlite.
• Remove unused runner.php file.
• Move common code to Drush_UnitTestCase
• Move file_aliases method to its own global function, unish_file_aliases() and use it in a setUpBeforeClass() implementation.
• #1963480 by greg.1.anderson | moshe weitzman: Added Site lists and output formats (CSV).
• Bug 2020957 by Aron Novak: Complete: use shell fallback
• Use machine name in place of human-readable name in extensions that provide no human-readable name. Emit debug-level drush_log instead. This cleans up noise printed whenever coder is present, due to the hidden coder 'bad' module.
• Update the views-execute command so it doesn't error.
• #2047209 by benjifisher: Fixed Document in drush_lookup_field_by_path() and 'field-mappings' in drush_rows_of_key_value_to_array_table().
• #1862950 by benjifisher: site-set should always run on local server.
• Add 'unuse' as alias for site-reset
• #2051353 by scor: Fixed Watchdog-show should not declare its own --full option.
• Fix watchdogTest
• Provide a way to pass customization options to Console_table class. The goal is to turn on the border feature for most tables. Still not used, as we need to adjust the auto_width routine.
• Put border back to '' for now.
• #1802948 by Steven Jones: Added drush -test-run should exit with failure if tests fail.
• #2049983 by Darren Shelley: Fixed Improve error reporting when PHP lacks POSIX support.
• Use 'json_encode' to work around strange problem where array(2 => 'authenticated user') is comparing as different to array('2' => 'authenticated user') in userTest.php.
• Reduce number of tests done in testBackendReassembleSplitPackets, unless running phpunit in --debug mode, in which case all tests are done. Supress output of backend packets.
• Skip web tests when sqlite and drupal 6 are specified since those are incompatible. Refactor a bit to use new db_driver() helper method.
• D6 compatibility in archive-dump tests.
• D6 compatible cache test.
• D6 compat for core-requirements test.
• Skip field tests on D6
• Skip image styles tests on D6
• Better D6 compat for pm test
• Skip testing for queue commands on D6. It didn't exist back then.