Fixed ansible distribution check template error

[jadbaz]

This fixes both:

• #42: using ansible_distribution_major_version instead of ansible_distribution_version
• #62: using is version instead of version_compare to satisfy Ansible 2.9 breaking change

[jadbaz]

Prior to this pull request, ansible_distribution_version was never 7. It was always 7.X so the failing part of the tests never ran.
Now that we changed it ansible_distribution_major_version it matches 7 on EL 7 and the tests actually run.
The reason this failed is another thing

[Mageti]

When could this PR be merged, please ?

[jadbaz]

@Mageti I couldn't wait so I forked it
You can use my galaxy role meanwhile
jadbaz.wildfly:v4.0.2
(Make sure to use v4.0.2 tag)

[kostyrev]

@Mageti when author will be changed back

[jadbaz]

@kostyrev, sorry I changed the author in order to create a galaxy role.
However, I only changed the author one month ago while this PR has been sitting here since November.
So there must be another issue
I think the issue was with the test cases but now that I force pushed my repo I can't see the travis builds anymore

[kostyrev]

tests are fine
they fail with very precise error

--> Executing Ansible Lint on /home/travis/build/inkatze/inkatze.wildfly/molecule/default/playbook.yml...
    [ANSIBLE0002] Trailing whitespace
    /home/travis/build/inkatze/inkatze.wildfly/meta/main.yml:4
      author: jadbaz 
    
    [ANSIBLE0002] Trailing whitespace
    /home/travis/build/inkatze/inkatze.wildfly/tasks/configure.yml:94
      when: ansible_distribution_major_version is version('7', '=') and wildfly_manage_firewall 

Exactly for this reason we use pre-commit.
You can run make lint to setup it up to avoid those kind of problems in the future.

[jadbaz]

I'm already using my repo for my forked galaxy role
Can someone else fork and submit another pull request?
It's really just 1 line change
And I can close this one