This is a bugfix and Security release.
In particular, it fixes CVE-2012-2694
and CVE-2012-2695.

You MUST upgrade your Instiki installation.

Changes Since 0.19.3
--------------------

New Feautures:
* Update for itex2MML 1.4.10
* Update SVG-Edit
* Ruby 1.9.3 Compatibility

Bugs Fixed:
* Fix CVE-2012-2694 and CVE-2012-2695 (Security!)
* Fix several Markuku bugs
* Fix several SVG-Edit bugs
* Don't escape style_additions
* Avoid invalid WikiFile links
* Fix tombstone bug
* Fix Theorem Environment
* Better Cache-Sweeping efficiency
* Fix double-escaping of flash messages