Merge branch 'master' of github.com:anxs/postgresql

Merge pull request ANXS#243 from singleplatform-eng/master

Resolve Ansible 2.3 deprecation warning

Merge pull request ANXS#229 from MartinVerges/master

fixed install problems on debian with pinning enabled

Merge pull request ANXS#224 from numerigraphe/ansible2.2

Use a boolean value for compatibility with the latest Ansible

Merge pull request ANXS#212 from MichaelConrad/implement_postgresql_9_6

Add compatibility for PostgreSQL 9.6

Merge pull request ANXS#150 from dev-zero/master

Install postgresql-contrib module on EL-distros

Merge pull request ANXS#164 from scotbond/master

Fixed typo in postgis-scripts package name

Merge pull request ANXS#161 from dirn/ansible-managed-templates

Add ansible_managed to templates

Merge pull request ANXS#176 from jesselang/add-cryptography-dependencies

Add cryptography dependencies

Merge pull request ANXS#138 from ANXS/farridav/docker_testing

Travis testing centos/ubuntu with docker