Add Reddcoin support to BIP-44

We are about to release the alpha version of Reddcoin Qt wallet 2.0 which is based on Bitcoin 0.9 and supports BIP-44. You can find the [development branch here](https://github.com/reddcoin-project/reddcoin/tree/bigmerge-new). Could you please add Reddcoin to the table of registered coins? Thanks.
Merge pull request #8 from laudney/patch-1

Add Reddcoin support to BIP-44