Changed first account name to "Default" to make it easy for getBTCInvoice to not have to choose an account. See [getBTCInvoice] It doesn't really matter which one has the default name, and it's not required, but just makes it easier if someone only uses one account, or repeatedly uses a "default" account.
Default account name sounds fine, could be applied to getBTCAddress as well where if an account name isn't provided. The wordage could be improved upon but LGTM
Changed first account name to "Default" to make it easy for getBTCInvoice to not have to choose an account. See [getBTCInvoice] It doesn't really matter which one has the default name, and it's not required, but just makes it easier if someone only uses one account, or repeatedly uses a "default" account.