Update bitcoinrpc.cpp

Need to increase the params since narration param was added to sendtoaddress.
Update rpcwallet.cpp

Narration is not the third option, comment is the third option. This is very important to because we want to be backwards compatibility with the Satoshi client.
Merge branch 'anon' of https://github.com/excoinexchange/shadowcoin into excoinexchange-anon
sendtoaddress changes for exchanges using comments
Merge branch 'excoinexchange-anon' into anon
Merge branch 'anon'