IBM_DB2 platform doesn't handle offset without limit

Oracle platform ignores OFFSET in case if LIMIT is not specified

URL-decode URL-style DSN

add postgresql: "9.6"

Fix parameter list expansion inside PostgreSQL arrays

Fixed ORA-01427 when listing columns

Escape to the global namespace under custom namespaces

Replacing spaces in the pgsql dsn string with semicolons as this is m…

Corrected styling around the GUID type in the types documentation

guid type not bolded

Fix a notice during tests if not realized with pgsql

Removes support for PHP 5.x

Correct HHVM version to 3.15.2+

php 7.1 with MARIADB_VERSION=10.1 seems to no longer be erroring randomly on tests

to correctly install and test the pgsql versions it looks like we are gong to have to long form the matrix with each of the pgsql versions

try to only add when pgsql

POSTGRESQL_VERSION=9.6 was released September 2016 See if we can run it on travis

Additionally allowing failures on PHP 7.1 with mariadb MARIADB_VERSION=10.1 since it is intermittently erroring

- fixes version of HHVM being tested
- drops mariadb 5.5
- adds POSTGRESQL_VERSION=9.5 (only available with sudo enabled trusty)

Replacing spaces in the pgsql dsn string with semicolons as this is more consistent with the other drivers and makes the PDOPgSQL driver work in hhvm 3.15.2 as well.