Rebrand Bitcoin logo to Namecoin #5
Description
We should rebrand the Bitcoin logo to the Namecoin logo. The Namecoin logo can be found at https://github.com/namecoin/namecoin-graphics . This may be portable from https://github.com/xaya/btc-rpc-explorer/tree/xaya-develop .