Useless guru patch1

[UselessGuru]

• Code beautification
• Support for unified gminer (required new API code)
• Fixed nanominer version 1.80 (NVidia & CPU, required new API code)
• Fixed active time calculation
• Reworked Earnings Tracker 7 Charting to support local culture (show date / time in local format)
• Changed exchange API to cryptocompare.com (results are listed with correct number of digits for the selected currency, useful for display purposes)

@Minerx117 Please test all thoroughly - there might be issues with earnings tracker. If so try remove the earnings data With nanominer:

• Please test device selection, I only have ONE gpu
• run benchmarks, and uncomment slow algorithms With gbminer
• Please test dual algo mining