Merge pull request geerlingguy#38 from MikeStankavich/master

Make java_home non-empty string conditional explicit instead of bare variable

Merge pull request geerlingguy#33 from jermon/patch-1

Remove apt cache update

Merge pull request geerlingguy#30 from lhoss/fix_java_home

fix exported JAVA_HOME

Fixes geerlingguy#26: 'java_packages' is undefined on Ansible 2.2.

Fix broken test on Ubuntu.

Merge pull request geerlingguy#22 from geerlingguy/java-home-set

Issue geerlingguy#17: Add ability to set JAVA_HOME global env variable.

Add Fedora to supported OSes.

Use the package module instead of yum (geerlingguy#21)

* Use the package module instead of yum

On latest Fedora systems dnf is used instead of yum

* Moving to Ansible 2.0

Moving to Ansible 2.0 to support the package module.

Merge branch 'ubuntu-1604-test'

Issue geerlingguy#16: Add missing variable files.