redis-server dependency listed in readme.md
pip redis dependency listed in readme.md
pip simplejson dependency listed in readme.md
Add Bitalo Wallet to API_USERS

Bitalo Wallet uses Bitcoin Average for fiat price conversion.
Merge pull request #149 from thofmann/master

Add Bitalo Wallet to API_USERS
Merge pull request #148 from thedawnrider/dependencies

Dependencies