trivial code reorganization.

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

Signed-off-by: crynobone <crynobone@gmail.com>
Add `php artisan extension:reset {extension-name}` command to reset extension configuration. Closes #43.

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