added auto generated list of projects in index
make index.ph the default index
put the <absolute-path-to-qgis-server-projects> directly in index.php
updated README to mention index.php
clearer placement ov the variable
added Require all granted as needed by apache 2.4
added wms links to index.php
Merge pull request #115 from opengis-ch/master

Added an index.php file that automatically generates the list of available projects