v0.10.3

Breaking Changes:

• allows anchors to pass arguments for form initialization by adjusting content_for_transaction()'s return type

DB Changes:

• added the refunded column to the Transaction model
• fixed Transaction.to_address and Transaction.from_address population bug

Bug Fixes:

• Selecting the Submit button on forms no longer submits the request twice
• Decimal values are now always displayed with the correct number of decimal numbers

Miscellaneous:

• added human-readable (and translatable) strings for each Transaction.status value