Fedora support

* Add *.lock to .gitignore
* Bump rhel/fedora version to 4.3
* Add supports fedora to metadata
* Refactor rhel,fedora yum_repository call
* Add dpkg/rpm bats validation test
Update authors list
Merge pull request #1 from atomic-penguin/patch-1

Update authors list
URL typo and regression test
Merge pull request #13 from atomic-penguin/master

Fedora support