1. Remove passphrase support for public keys.
2. Rename privPassphrase to passphrase to avoid confusion.
Note:
There has been a bug in the prompt, which prevents users from
specifying a custom public passphrase. So, most wallet databases
have been using the default password for the public keys, anyway.
This updates all code to make use of the new chainhash package since the
old wire.ShaHash type and related functions have been removed in favor
of the abstracted package.
Also, while here, rename all variables that included sha in their name
to include hash instead.
Finally, update glide.lock to use the required version of btcd, btcutil,
and btcrpcclient.
In https://github.com/btcsuite/btcwallet/pull/419#issuecomment-212482492
I mentioned that btcwallet should wait until btcd also switches back
to upstream package paths so that duplicate packages are not included
in and bloat the btcwallet binary. Even while btcd has not yet
switched to the upstream flags package, this change can still be made
now since it is only used by btcd's main package, which is not
included in btcwallet.
This tool creates on-chain transactions, one per used address in a
source account, to sweep all output value to new addresses in a
different destination account.
