Make PHP option short_open_tag configurable

This is useful for nasty legacy applications.
Added assurance that config directories exist
Merge pull request #11 from LewisW/patch-1

Ensure config directories exist.
Formatting.
Merge pull request #7 from seschwar/master

Make PHP option short_open_tag configurable.
Add php-pear to default packages.
Merge pull request #1 from geerlingguy/master

Pulling in changes from upstream