add some 'object' clearfixes

[erykmynn]

We already have very nice clearfixes for P and DIV, which are block level elements, and the DIV can be used to wrap other block level elements like headings.

But CKEDITOR has 3 classes of tags for applying styles, inline, block and OBJECTS. Objects are nice because the styles only appear on the object, these are things like tables, lists, etc. We found a case where LI needed a clearfix option, and probably tables and some others do too.

1. identify the objects that should have specific clearfixes -- somewhere there is a list of what is block and what is objects
2. add them to webedits' default stylesset in the config section of the .module file

example:
$stylesset[]= array('name' => 'li clearfix','element' => 'li','attributes' => array('class' => 'webedit-clearfix'));