Add URL rewriting for lighttpd

Works with 2.4.x build.

Credits: http://www.guyrutenberg.com/2009/01/24/configuring-lighttpd-for-cakephp/comment-page-1/#comment-243532
Update url-rewriting.rst
Merge pull request #788 from Stefan---/patch-1

Add URL rewriting for lighttpd
[fr] Follow #992 & e7cb19d903a7478dc562e0b350dc018b2d03460e

add a note for deleteAll()
[fr] Follow #821

Rewrite „Inspecting the request“
[fr] Follow #788

Add URL rewriting for lighttpd