[TYPO3-core] New icon for Manual

[Dmitry Dulepov [typo3]]

Ingo Renner wrote:
> after talking to Benni we decided to also change the other icons in one 
> run. To make it consistent they all use the famfamfam style now.
> 
> If nobody objects until tonight they will go into RC2.

Great work!

-- 
Dmitry Dulepov
TYPO3 core team
Web: http://typo3bloke.net/
Skype: callto:liels_bugs
"Nothing is impossible. There are only limits to our knowledge"