This changes the default CA filename from 'cert.pem' to 'btcd.cert' to
reflect the fact that this cert is used for securely connecting to
btcd. With the introduction of autogenerated btcwallet certs (saved
to rpc.cert and rpc.key) this change was made to better differentiate
the two cert files.
To upgrade across this change, simply move the btcd cert. On unix,
use the command:
$ mv ~/.btcwallet/cert.pem ~/.btcwallet/btcd.cert
This adds an additional config option, -cafile, to specify the root
certificates checked when verifying a btcd TLC connection. btcd will
now automatically generate certs in
~/.btcd/data/{main,test}net/rpc.cert, and this file should be copied
to ~/.btcwallet/cert.pem.
The -btcdport option is also gone now, and replaced with -connect (or
-c), to specify both the hostname/ip and port of the server running
btcd.
To start btcd and btcwallet with all the right settings for testnet,
the Btcd Suite batch file should be run from the start menu rather
than btcd and btcwallet individually. Update the README to reflect
that.