Bugfix: If a static file extension is requested, do not invoke PHP if not found
references easybib/issues#417
Fixes wrong usage of try_files
Adding static bypass for www
See easybib/issues#417
Adding Docroot
It is possible to disable regular expression checks after literal string matching by using "^~" prefix. If the most specific match literal location has this prefx: regular expressions are not checked.
Refactor: push this into a block
Fix: indenting
Merge pull request #156 from fh/topics/staticfiles

Bugfix: No PHP for 404-static-content