Updated seed file
1) Updated models for correct validations
2) Previously the seeder would crash at 86k records. This was due to some text data that was pre-appended to the brewer id in the Ratebeer csv file. I did a find and replace to fix this issue, but I need to look for similar data issues in the larger (4mm record file)
Merge pull request #20 from vikram7/vr-updating-seed-file

Updated seed file