Allow single quote in style attribute values.

Aleksander Machniak

2014-01-24 c0dda0556c5e880f4a180cc1c13bb54c61b01c5a

 program/lib/Roundcube/rcube_washtml.php

@@ -184,7 +184,7 @@
                        '|rgb\(\s*[0-9]+\s*,\s*[0-9]+\s*,\s*[0-9]+\s*\)'.
                        '|-?[0-9.]+\s*(em|ex|px|cm|mm|in|pt|pc|deg|rad|grad|ms|s|hz|khz|%)?'.
                        '|#[0-9a-f]{3,6}'.
                        '|[a-z0-9", -]+'.
                        '|[a-z0-9"\', -]+'.
                        ')\s*/i', $str, $match)
                ) {
                    if ($match[2]) {