0.2.22

Several helpful bugfixes:

• Fix issue with parsing email headers with comma in the name
• Closed ticket pagination
• Prevent tickets from depending on themselves
• Fix keyword query box in ticket list, bulk ticket handling buttons, javascript improvements
• Fix knowledgebase score handling error
• Documented previously undocumented HELPDESK_MAX_EMAIL_ATTACHMENT_SIZE setting
• Better default permissions for attachments
• French translation updates, fix bug in fixtures

This release shouldn't break anything as there was no new features added, so recommended for all users of the 0.2.x branch to upgrade ASAP.