🌈fixed some lint errors

pos_keyboard/__openerp__.py

@@ -1,3 +1,4 @@
+# -*- coding: utf-8 -*-
 {
     'name': "Keyboard support in Point Of Sale",
     'author': "IT-Projects LLC, Ivan Yelizariev",
@@ -6,6 +7,7 @@
     "website": "https://it-projects.info",
     'images': ['images/keyboard.png'],
     'category': 'Point Of Sale',
+    'license': 'LGPL-3',
     'version': '1.0.2',
     'depends': ['point_of_sale'],
     "price": 15.00,
@@ -13,6 +15,6 @@
     'data': [
         'data.xml',
     ],
-    'installable': False,
+    'installable': True,
     'auto_install': False,
 }