- Add tips for fields that were previously overlooked.
- Fix some typos.
- Update tips to adopt the formatting conventions of tips.

- Proofread large portion of help tips.
- Implement help tip links in YAML files.
- Fix GUI spacing of some elements.
- Add <label> tags to a few form elements.

  * Drop _table_ titles
  * Drop _button_ titles and contents
  * Fixup titles to remove leading and trailing underscores in titles
  * Remove duplicated namespaces for ticket queue pages
  * Whitespace cleanup

- Improve the wording and grammar of template notes.
- Fix formatting and/or wording for a few of the default
  templates.

Add organization class

Add client registration methods and login required checkbox

  * Administrator can disable the new activity alert
  * Administrator can disable automatic collaborators from email headers

Ticket owner as well as collaborators can request access link by entering
email and ticket number.

Fixes the rewriting of the `key` field in the ticket thread body. The
storage de-duplication system may replace the `key` value with an existing
one. The ticket thread system will use the `key` value assigned when the
file is committed to the database or the existing key of the duplicate file.

Also fixup installation issues with the attachment storage plugin
architecture

And install initial data in target language. Also configure help tip
popovers to be in the configured, default system language.

If a ticket is currently unassigned and your respond to it, it's yours. If a
ticket is closed and later reopened due to a new message, the last
respondent will always be assigned if available at the time.