Don't push code coverage when on hhvm environment.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2
Add `Orchestra\Extension\Factory::refresh()` helper method.

Signed-off-by: crynobone <crynobone@gmail.com>
Add `Orchestra\Extension\Environment::refresh()` method and add `php artisan extension:refresh {name}` command.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2

Signed-off-by: crynobone <crynobone@gmail.com>

Conflicts:
	src/Extension/Environment.php
Fixes indentation.

Signed-off-by: crynobone <crynobone@gmail.com>
Merge branch '2.1' into 2.2
Merge branch '2.2'