Avoid session timeouts with memcache backend as proposed by D. Carter via users mailing list
Fix priority selector when open in new window (#1489257)
Better check for priority header
Fix parsing of links with ... in URL (#1489192)
Updated Changelog
Fix identity-selection using Return-Path headers (#1489241)
Updated changelog
- Fix detecting Turkish language in ISO-8859-9 encoding (#1489252)
Fixed some StringReplacer tests
- Fix rewrite rule in .htaccess (#1489240)
Support special Return-Path form used on some (PEAR) mailing list (#1489241)
Fix XSS vulnerability when editing a message "as new" or draft (#1489251) - added HTML content "washing"

Conflicts:

	CHANGELOG
Fix fatal error when opening non-existing message in compose window
Fix broken (in 93b0a30c1c8aa29d862b587b31e52bcc344b8d16) text/plain body of a message when using "edit as new"
Fix colorspace issue on image conversion using ImageMagick (#1489270) - s/RGB/sRGB/
Fix XSS vulnerability when saving HTML signatures (#1489251)

Conflicts:

	CHANGELOG
Fix wrong handling of links with '|' character (#1489276)

Conflicts:

	CHANGELOG
	tests/Framework/StringReplacer.php
Fix base URL resolving on attribute values with no quotes (#1489275)
Fix purge action in folder manager (#1489280)

Conflicts:

	CHANGELOG
Make thread toggles work on touch devices