Adding Postgresql support to travis build testing

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6208 7882d7ee-46e0-0310-a255-a28a61b628e4
Don't add host and password to the connect string if they are empty correctly call strpos

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6209 7882d7ee-46e0-0310-a255-a28a61b628e4
Whitespace cleanup

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6210 7882d7ee-46e0-0310-a255-a28a61b628e4
Corrected install arguments postgres, removed debug output

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6211 7882d7ee-46e0-0310-a255-a28a61b628e4
Allow for a passwordless configuration

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6212 7882d7ee-46e0-0310-a255-a28a61b628e4
Only set default when there is no database_host, empty string is fine

git-svn-id: https://svn.muze.nl/svn/ariadne-php5/trunk@6213 7882d7ee-46e0-0310-a255-a28a61b628e4