Don't modify nil getnetworkinfo result.

Since the result might not be set when the response does not contain one,
such as in the case when the command is not implemented by the server,
don't attempt to modify it until ensuring it exists.
Update ListReceivedByAddressResult txids field.

The name of the field in the returned JSON is txids, not tx.
update ValidateAddressResult for IsWatchOnly
IMPORT PATH MODIFICATION CHANGESET
----------------------------------

Please use this changeset as the first one on top of the conformal codebase.
Note that if there are new imports, they need to be changed as part of this
changeset. In general, use "git rebase" on github.com/conformal's version
and apply this changeset first.
Add getdepositscript, createseries, replaceseries and thawseries