<feature/coupon> change name space #76
<feature/coupon> start impl storage for coupons #76
<feature/coupon> update orm model #76
<feature/coupon> refactor. Move strorage managering behaviour in separate class #76
<feature/coupon> start implement coupon storage #76
<feature/coupon> create abstract class which incapsulate query string #76 #81
<feature/coupon> implement commands to work with coupons and assignments #76 #81
<feature/coupon> save coupons to local db #76 #81
<feature/coupon> at firs start app we must load user info. Fix it #76 #81
<stable/0.1> Merge branch 'feature/coupon' into stable/0.1