Added arrival hour validator and corrected grammar in date validator in clean method ; added min_length in driving_license field on PoolingUser model; modified min value in total_price on Trip model and in price on Step model
Added arrival hour validator and corrected grammar in date validator in clean method ; added min_length in driving_license field on PoolingUser model; modified min value in total_price on Trip model and in price on Step model

livingsilver94/getaride,livingsilver94/getaride,livingsilver94/getaride