- 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)
Merge branch 'release-0.9' of https://github.com/roundcube/roundcubemail into ipax-0.9