Added ability to swipe rows to delete

I've tested this within our project by temporarily using my fork's pod spec (not yours). If you can merge this into your custom branch then we can stick with your pod spec (unless and until it all gets merged into the mainline).
I'll separately send a pull request to the main repo.

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Added swipeToDeleteMode, which disables editing on the UITableView.

Added indexOfFormRow helper method on XLFormSectionDescriptor.

Fixed Podfile