Quotes: escape ; fix formatting
Quotes: 1.6.9
Update participated plugin view

Use existing discussions views for participated plugin, accounting for possibility of table layout.
Merge pull request #150 from vanilla/hotfix/ParticipatedViewLayout

Update participated plugin view
Signatures plugin: Add settings to plugin.

Additional settings:
Max number of images
Max signature length
Max height of images
Signature Plugin: Settings updates

Ensure signature settings play nicely with ranks. 
Separate site signature settings and user signature in view.
Update the signatures icon.
Tweak signature rules.

- Enforce the max image height in a style tag, not image attributes.
- Change the way the signature rules help is built.
Only show the signature rules string if the user has permission to edit signatures.
Merge pull request #151 from vanilla/feature/expand-signature-settings

Signatures plugin: Add settings to plugin.
Quotes: Also escape
Quotes: switch format filter to htmlspecialchars
Merge pull request #135 from vanilla/hotfix/quotes-xss

Fix XSS in Quotes
Merge pull request #141 from vanilla/feature/multilingual-rtl

Add rtl support to the multilingual plugin.
Add usernameless SSO support to jsconnect.

Client libraries can now pass a user without a username into jsconnect. This requires adding a “signedin” flag to the non-secure js response.
Merge branch 'hotfix/no-jsconnect-username' of github.com:vanilla/addons into stage
Merge branch 'stage' of github.com:vanilla/addons into stage