Merge pull request #45 from wick-ed/master

reviewed diff and tested locally with 0.6.0
Update composer.json
separated phpmodule to own git repo
Merge branch 'master' of https://github.com/techdivision/TechDivision_WebServer
added phpmodule to require
added ETag handling for browser caching
Merge pull request #46 from zelgerj/master

separated phpmodule to own git repo
fixed 404 behaviour on non existing files
fixed coding standard
Merge pull request #47 from zelgerj/master

fixed 404 behaviour on non existing files
added envVar examples + minor bugfix
Merge branch 'master' of https://github.com/techdivision/TechDivision_WebServer