Fix bug in IBMarketFeed, misspelt configurable

Fix most liquid VIX future not shifting to next month

Remove calls to flush() in io package, leave it to users

Fixed issues with default data dir in AbstractMarketFeed

Fixed broken ivy ant ant configuration for source jar

Changed bar size to the one specified when fetching historical data without prior files available

Added PerformanceTracker, more work needed

Reduced logging noise

Fixed issues in Configurable

Numerous clean ups and small improvements

Update README.md

Update README.md

Update README.md

Update README.md

SymbolFactory clean up