Safari: space added at the end of style attribute

[Wiktor Walc]

When aligning a paragraph to the right, an empty space is added at the end of style attribute. Confirmed in Safari 5.0.2 @ Mac.

Steps to reproduce

• Open replace by class sample
• Click inside of the first paragraph
• Press the "Right Justify" button
• Result:

  <p style="text-align: right; ">
  	This is some <strong>sample text</strong>. You are using <a href="http://ckeditor.com/">CKEditor</a>.</p> 
  

Related to #6541.

[Wiktor Walc]

Same issue happens in Safari 5.0.2 @ Windows.

[Alfonso Martínez de Lizarrondo]

The main problem as I explained in #1653 is that the CSS normalization and cleanup is done while adding styles to the content, but to be effective we must do it at reading time.

I hope to work one of these days in #5528 that would fix all these issues at the same time as well as any other change done to the styles by the browsers.

[Piotrek Koszuliński]

Could not reproduce this on Safari 7.0.