~singpolyma/sgx-jmp

ref: 75658ba14b40d551488dae800e9a7d2bfeb239a8 sgx-jmp/redis_lua d---------
Merge branch 'btc_spop'

* btc_spop:
  Get new Bitcoin address from Redis set
Get new Bitcoin address from Redis set

This set is populated by a cron job to have only known-good available addresses
in it.