Paste: problems with custom styles

[Damian]

When copying text with custom styles applied, all styles are ignored in all browsers except IE.

In IE, only paragraph alignment is lost, all other styles are preserved.

See attached test document.

[Damian]

Contains custom style called "CKEditorTestStyle"

[Garry Yao]

1. For FF, it should work with a styles preservation config:

   	config.pasteFromWordRemoveStyles = false;
   	config.pasteFromWordRemoveFontStyles = false;
   

2. For IE and Webkit, our content sniffing is not working, which means we have no idea it's come from MS-Word, so no cleanup process at all.

   IE clipboard:
   
   <P style="MARGIN: 0cm 0cm 0pt" class=CKEditorTestStyle><SPAN lang=EN-US><STRONG><EM><U><FONT color=#99cc00 size=7 face="Comic Sans MS">This is a test using CKEditorTestStyle custom style!</FONT></U></EM></STRONG></SPAN></P>
   
   Webkit clipboard:
   
   <h1><p class="CKEditorTestStyle"><span lang="EN-US">This is a test using
   CKEditorTestStyle custom style!</span></p></h1>
   

We're not going to fix this specific case.