First commit

Just committing this now so I don't break/lose things later on ;)
Small tweaks to `composer.json`
Add class to `ext.php`
Restore unit tests

Bring back the unit tests in working condition. For now this is
quite limited but atleast they work.
Update extension name in `composer.json`
Add some comments

Begin commenting the current code. Lots to do.
Remove `git-tools`

Remove the git tools from the tree, these are just a copy of the phpBB
git tools. As the phpBB core is already a submodule of this project one
can easily setup the actual phpBB git tools.
Coding guidelines

No camelcase.
Drop unneeded lines
Moving some files around
Readd code coverage report on travis.
Add more tests.
Update the phpBB vendor

Update phpBB and some small changes which hopefully fix the tests
on travis.
Small correction to the travis phpunit configuration
Merge branch 'update-phpbb-tests-vendor' into rebuild

* update-phpbb-tests-vendor:
  Small correction to the travis phpunit configuration
  Update the phpBB vendor
Update `*.travis.xml` configurations
Correct invalid name

No dashes allowed in the extension name, replace them with underscores
for the time being so that the extension can be installed through the
ACP.
Begin work on some proper output

Actually build a page rather then throwing around plain text.
Update `*.travis.xml` configurations
Correct invalid name

No dashes allowed in the extension name, replace them with underscores
for the time being so that the extension can be installed through the
ACP.