Chrome inserting <span> elements

[ckburnett]

Under certain use cases, Chrome is inserting unwanted elements that have inline style attributes including font-size and line-height.

Problem is not limited to MODX distrib of TinyMCE. Google searches show it on multiple other implementations of TinyMCE.

MODX-related references:

• http://forums.modx.com/thread/82075/tinymce-adding-tags-everywhere#dis-post-483468
• http://bugs.modx.com/issues/9491

Possible solution(s):

1. Remove the line-height portion of the font-size declaration on the body element in the TinyMCE themes content.css. I.e. change "font-size: 12px/1.5em" to "font-size: 12px". This appears to fix both the addition of spans to list elements and the test case reported in issue 9491
2. Add the TinyMCE "lists" plugin to MODX tiny.custom_plugins system setting. This fixes the lists span addition, but does not fix the test case in 9491. Note: Adding the lists plugin also appears to address issue 82 in splittingred's TinyMCE GitHub repo (from which this one was forked): nested list splittingred/TinyMCE#82