Several security and stability issues have been fixed in this update:
* Deal with bogus Turktrust certs MFSA 2013-20
* Several memory security hazards fixed MFSA 2013-01
* Updated OTS library to r95 to fix potential font-related exploits
* Security fix for libpixman stack buffer overflow
* Fix for certain types of input lag on Twitter/Facebook & other sites with unnecessary DOM invalidations
* Fix for HTTP pipelining re-use (improve pipelining logic)
* Performance&stability updates to cairo and direct2d back-end
* Improved performance for repeat gradients





