Now provides better error messages when the account you're sending
from has no money, or it has insufficient funds. (Avoids making
the user interpret ABCI errors)
closes#1489
* Started work on multiple msgs, types and x/auth tests pass
* Fix issues in x, examples, and baseapp
* Added baseapp tests for multiple msgs
* Documentation fixes
* Fix baseapp tests with sdk.Int
* Modify test
* Transaction handling is now atomic
* Fix test comment
* Minor doc fixes and code cleanup
* Added baseapp result changes
* Use address in validator update accumulation
* Started work on multiple msgs, types and x/auth tests pass
* Fix issues in x, examples, and baseapp
* Added baseapp tests for multiple msgs
* Documentation fixes
* Fix baseapp tests with sdk.Int
* Modify test
* Transaction handling is now atomic
* Fix test comment
* Minor doc fixes and code cleanup
* Added baseapp result changes
* Use address in validator update accumulation
* Added ante tests for multisigner
* Remove validatorUpdates from tx result
* Better error logs
* Put Memo in StdSignBytes and formatting
* Updated changelog
