Fix additional_message_headers plugin compatibility with Mail_Mime >= 1.9 (...

Aleksander Machniak

2016-02-09 b2d4cfa89a9d498f98b5d19ac496cf9f70f92070

1
.mceItemHiddenSpellWord {background:url(../img/wline.gif) repeat-x bottom left; cursor:default;}