Added zip code input type as number
Added validations to other option from checkbox and radio
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Refactored code in main.coffee
Merge pull request #13 from adityagodbole/ci-641

fixed #ci-641
Merge pull request #14 from adityagodbole/ci-513

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Fixed saving of paragraph and dropdown fields
Merge pull request #16 from adityagodbole/ci-621

Fixed saving of paragraph and dropdown fields
removed conflicts