drush 6.x-2.0

Changes since DRUPAL-6--2-0-RC1:

• #467726 by adrian. possible fix for Not catching updatedb errors in D7.
• Improved documentation, and removing a false error for translation install
• Adding export COLUMNS to drush, and also updating README
• #463738 by moshe weitzman. Updatedb unreliable unless uid #1 is logged in.
• #463110 Drush dl does not respect drupal major version
• #434940 by moshe weitzman. Smarter 'You should now run A Drupal installation directory could not be found
• #462234 - catch php fatal errors and ssh connection failures
• #434772 - drush return codes are the opposite of expected unix command return codes. drush now returns 0 on success. If the shutdown handler is triggered before drush has completed, it now triggers an error.
• #459652 - stronger error catching for remote server connections. Do not accept password authentication and read stderr to find connection errors
• #453948 - checking PHP 5.2 and safe mode
• #464060 - awesomepossum - enable module management for Drupal 5
• #441470 - Bevan - drush wrapper should pass parameters. Also fixes working directory and a typo in README.txt
• #459678 - allow drush files to be located in a system wide location
• #472218 - keep commandfile list sorted alphabetically. Previously hooks were triggered in whatever order the drush_scan_directory retrieved them, which caused hook order to differ in different environments, causing errors that could not be reproduced easily.
• Better error messages when Drush fails the initial validation step.
• Fix broken confirm updatedb for D5
• Minor attempt at including commands from enabled modules only (when executing commands). Solving this properly is too hard ATM. I recommend that modules name themselves as dependencies in hook_drush_command().
• Bring update code back into synch across the various versions. The confirmation screen is only showing what needs to be done, and if no updates are needed a message is displayed.
• The enable/disable/statusmodules commands now work in Drupal 5, 6 and 7
• #436782 - Owen Barton, adrian, moshe weitzman - Wrap stdout at 80 characters (where reasonable)
• Wrap help intro text
• Adding php.ini file location to Drush status, since often it is not the one people expect.
• Typo in loading of modules, was using ->filepath and not ->filename
• #477720 by http://drupal.org/user/24167. Handle spaces in paths when using wget to manage projects.
• #458722 by moshe weitzman. Can't download projects with dl.
• #479718 by Owen Barton. Fix for php < 5.2.4
• #481512 by moshe weitzman. readme mentions php 5.2 requirement.
• #453948 - Moved PHP version check to drush.php, since environment.inc try/catch doesn't parse in php4. At some point we could move this to an engine, if we find enough cases to make it worthwhile.
• #481592 by adrian. php 5.2.9 and --debug gives session cookie notice
• #433838 by Owen Barton. drush dl attempts download to default when nothing specified.