drush 6.x-3.0

Changes since DRUPAL-6--3-0-RC4:

• Add 'cli_bashrc' hook where command files can add their own bashrc functions. Use that hook to add our own lsd/cdd functions. Still not integrated with cli's help command.
• #772900 by greg.1.anderson: Enhanced confirmation message in sql-sync: include tables list
• Allow commands to show own help even if they don't implement hook_help
• Fix a path error in rsync that caused user@machine:/path to fail (anything with a ':' that did not use an alias)
• fix notice related to new 'version-extra code'. also start showing *recommended* releases message even when in non-verbose mode
• #776696 by jonhattan. Enables modules in wrong order
• #778104 by greg.1.anderson: Rename status, cron and rsync commands to 'core-*' to avoid conflicts with other modules.
• Temporarily restrict site-upgrade to d6 sites
• Let calls to drush_do_site_command() specify $integrate=TRUE if they choose. Use it in site-upgrade.
• #778862 by greg.1.anderson. Separate items by newline rather than space in drush_print_pipe.
• #779046 by dmitrig01: replaces tabs with spaces