Set nginx tab active instead of apache.
It's possible to install mysql/mariadb and pgsql in one vagrantbox.
Revert "It's possible to install mysql/mariadb and pgsql in one vagrantbox."

This reverts commit 32d87c3aa7f045f8ea8f56a28fe42b8d5c28420e.
Merge pull request #139 from sndpl/master

Set nginx tab active by default instead of apache.