Backporting fixes into the latest stable release

If you'd like to backport a patch from the trunk into the maintenance branch for inclusion in a patch release, please consider only fixes that

• fix data corruption
• fix crashes
• fixes a previously broken build
• regression from the last minor release
• documentation changes
• crucial usability issue (after discussion the mailing list)

At the same time for patch release we have to maintain binary back and forwards compatibility (i.e. we cannot add new symbols).

If you have landed a change into the trunk and it fulfills the above criteria, please edit this wiki page and add the SVN revision to the list below. Afterwards send a notification to the mailing list:

• Revision 51103 -- ​https://bugs.webkit.org/show_bug.cgi?id=29443 -- WebKit crashes when loading certain SVG images * ​https://bugs.webkit.org/show_bug.cgi?id=31681 -- [Qt] Wrong runtime instance objects of wrapped QObjects may be used if the wrapped object died before the gc removed the instance
• ​https://bugs.webkit.org/show_bug.cgi?id=31355 -- Documentation fixes