XWIKI-10808: missing doc authors in flamingo skin

P1. You need 2 space indentation of CSS properties, read http://dev.xwiki.org/xwiki/bin/view/Community/XhtmlCssCodeStyle#HCSS 

P2. Also for Flamingo I would remove the padding all together since is not needed. 

P3. You add an additional new line on line 279, why? :)

Obs. There is also a bug since apparently we are using badly #xdocAuthors in contentview.vm so this affect also the zone after the Title. I will create a separate issue for this.

Conclusion: 
* I can accept #313 
* For #315 please fix: P1, P2 and P3

Thanks :)