Allow to retrieve instance of `Illuminate\Http\Request` and `Illuminate\Translation\Translator` from within Form and Table builder. Closes #20.

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

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

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

Conflicts:
	README.md
	composer.json