add support for bionic

[kubicgruenfeld]

Pull Request (PR) description

adds support for ubuntu 18.04 - bionic

This Pull Request (PR) fixes the following issues

Fixes #75

[bastelfreak]

Hi @kubicgruenfeld, thanks for the PR. Can you please add Ubuntu 18.04 to the metadata.json?

puppet-proxysql/metadata.json

Line 66 in a6b8de7

"16.04"

That will also automatically enable unit tests for this distribution.

Please also duplicate this block and adjust it for 18.04 to enable acceptance tests:

puppet-proxysql/.travis.yml

Lines 38 to 49 in a6b8de7

	- rvm: 2.5.3
	bundler_args: --without development release
	env: PUPPET_INSTALL_TYPE=agent BEAKER_IS_PE=no BEAKER_PUPPET_COLLECTION=puppet5 BEAKER_debug=true BEAKER_setfile=ubuntu1604-64 BEAKER_HYPERVISOR=docker CHECK=beaker
	services: docker
	- rvm: 2.5.3
	bundler_args: --without development release
	env: PUPPET_INSTALL_TYPE=agent BEAKER_IS_PE=no BEAKER_PUPPET_COLLECTION=puppet6 BEAKER_debug=true BEAKER_setfile=ubuntu1604-64 BEAKER_HYPERVISOR=docker CHECK=beaker
	services: docker
	- rvm: 2.5.3
	bundler_args: --without development release
	env: PUPPET_INSTALL_TYPE=agent BEAKER_IS_PE=no BEAKER_PUPPET_COLLECTION=puppet6-nightly BEAKER_debug=true BEAKER_setfile=ubuntu1604-64 BEAKER_HYPERVISOR=docker CHECK=beaker
	services: docker

Last but not least please add Ubuntu 18.04 here as well (this file is used to generate the .travis.yml from time to time.):

puppet-proxysql/.sync.yml

Lines 4 to 6 in a6b8de7

	docker_sets:
	- set: ubuntu1404-64
	- set: ubuntu1604-64

[mcrauwel]

This was fixed in #102