Changes with Aloha.Editor 1.4.48

Bugfix SUP-5397

When pasting content from a word document, that was modified using the word correction mode
the wordcontenthandler pasted the ins and del elements.
This has been fixed now, the wordcontenthandler will remove del elements and unwrap the contents of ins elements.

Bugfix SUP-6269

When copying a headline the format was lost after pasting. This has been fixed. The error still occurs when a single line of headline is copied and pasted in Internet Explorer.