Added support for AS domain, AS usage type and AS CIDR

Fixed multi-threading issue

Fixed null IP issue

Added methods to check database type and date

Fixed wrong value returned by CIDRToIPv6 function

Updated version to match Maven version

Added support for district, ASN and AS

 Added Country class to query country information and Region class to…

… lookup the ISO 3166-2 subdivision code for country code and region name

Create DecimalFormat only once to improve IPQuery response times

Added function to read data from byte array instead of BIN file