Support for "op_return" parameters in bitcoincash: style URI's on Qt … (#952)
Support for "op_return" parameters in bitcoincash: style URI's on Qt … (#952)

* Support for "op_return" parameters in bitcoincash: style URI's on Qt client

* If OP_RETURN is present, send OP_RETURN regardless of whether 'enable_opreturn' is enabled in config
On do_clear method, hide OP_RETURN field/label if 'enable_opreturn' is not enabled

* Hide OP_RETURN when pasting new address - if 'enable_opreturn' config param is disabled

fyookball/electrum,fyookball/electrum,fyookball/electrum