* Default to standard DB if nothing is set
* Separate Accounts and Pool Workers shared DB
* Added shared News DB
* New config options added
* `$config['db']['shared']['accounts']`
* `$config['db']['shared']['workers']`
* `$config['db']['shared']['news']`
* [ADDED] New option to coin class to change coin value precision
* [UPDATE] SQL Transactions table from double to decimal(50,30)
* [REMOVED] Admin setting for coin value precision
* [UPDATE] JS files to honor coin precision
* [REMOVED] Pool/Combined hashrate graph until we have a proper SQL to
generate this data. Volunteers?
* [ADDED] Worker and share rate statistics over time
* [ADDED] Admin setting to change graphing days (default: 1 day)
* [ADDED] Purge entries older than admin setting
* [REMOVED] Template files that aren't used anymore
* [UPDATED] Cronjobs to store real values, display with coin precision
* [UPDATED] Templates to use new coin precision setting in dashboard
* [UPDATED] JS API calls to use new precision setting too
* [UPDATED] PPS Value is displayed as coin precision + 8
This should help with #2216 and address issues with coins where rounding
of 12 was not enough.
