v3.0.0

• Make HAProxy 1.6 the default version (haproxy_version can still be set to 1.5)
• Removal of deprecated operating systems
• Ansible 2 fixes

Use something like this to cleanup old PPA files:

ansible all -i inventory -m shell \
  -a 'rm /etc/apt/sources.list.d/ppa_vbernat_haproxy_1_5_*.* -v' \
;