Moto-testnet-box setup and missing debug.h
Small cleanups, bump block header version to 3
Use random nonce
Don't parse during map gen loop
  was problematic for two reasons
    1: released work too early
    2: eventually hits recursion limits
  will reduce effective hashrates slightly
    "wastes" slightly more time in stale map generation now
-DTESTMODE will make an empty map with moved coin (for freefall testing)
Dependency upgrades (gitian openssl) from ltc upstream
Bump version to 0.8.7.2