Merge pull request #12 from marado/master

PHP 5.2.0 is the minimum version required by PHPExcel, so...
requires new phplib db_pdo new fetchAll function
Merge branch 'master' of github.com:bevhost/probind
update sql statements to phplib pdo
more pdo changes
add media:print css to stop header and navigation from printing.
phplib pdo now complete for web site
bugs - mostly undeclared vars and lack of isset
fix it properly this time
more mysql changeover to pdo
missed a bit
missed another one
bug-fix, php execute requires array
css styles fixes