refactored BF JSON to pass market struct
refactored Betfair JSON http support
refactored oddschecker looking up of event spans
now getting ladbrokes selection ids
simplified labrokes market/selection finders
refactored ladbrokes selections
more ladbrokes selection abstractions
added sample text for standard market
added 1x2 example
added code to filter ladbrokes win/draw/win
more ladbrokes win/draw/win parsing