* remove context object from aggsig and transaction libs
* fix to aggsig, and remove unnecessary warnings
* put tx_fee function into libwallet::transaction
* Error cleanup, and creating libwallet error type
* remove some unwraps
* checker bug
* ensure transaction tests checks sender's wallet
* Initial version
* store failure parameters inside ErrorKind variants
* continue failure transformation
* 4 errors left
* still two errors
* return old code back
* finally compiling
* Fix compilation and test errors after merge
* Make Get coinbase via wallet API error more self-help friendly. Also show the wallet API URL that failed to respond.
* spelling and rustfmt nit
* more informational output from `grin server stop`
* newcomer friendly error when wallet.seed isn't found
* grin wallet (info|outputs): better error message