for the test, i added (manually) a market record named "c-cex LTC"
with base_coin set to "LTC", you may have to disable any BTC market(s) for the coin
In this case, the coin BTC price/balance is computed, based on LTC price,
even if the database coin "BTC price" is under 1 sat.
require LTC to be enabled or... "watched" to also update LTC/BTC price
implemented for cryptopia, nova and c-cex, not bleutrade (DOGE only)
+ various small log fixes..
- cryptsy is now used in low priority as default market
- remove keys.php from default defines, only loaded when used
- safecex prepare balances and deposit addresses (not ready yet)