Added futures market hours with help of Deval. This needs more tests in the future.
Added several futures exchanges. Some groundwork for future use of exchanges in the future symbols.
Removed IQFeed futures symbols map. Map is now generated and saved automatically, effectively removing the issue of IQFeed arbitrary renaming futures symbols
Changed IQFeed universe file downloading intervals from daily to weekly.
Adds comments and removes some white space
Changes 'bitfinex-divisor' to 'bitfinex-scale-factor'
Removes rounding of volume (cast to long will do this after scaling applied
Andrew