- menu defined meta descriptions have higher priority now.
- fixes square sized image defect when images are coming from picasa web
- fixed invalid image sizes because of the missing blank.php image
- fixes issue with enabled url rewriting including the suffix
Merge branch 'v2.6.6'

Conflicts:
	admin/doc/readme.md
	site/helpers/image/helper.php
	site/helpers/image/local.php
	site/helpers/image/picasa.php
	site/views/event/view.html.php
	site/views/singleimage/view.html.php
updated docu