First commit from IntelliJ. Finished writing PortfolioDbTests.groovy
Cleaned up warnings generated by IntelliJ
Removed an unused field from Portfolio
Wrote Groovy unit test for TradingSession.reconcileExpiringOptions(). Failed :  Portfolio.exerciseOptionPosition() incorrectly using getTicker(). Corrected to getUnderlyingTicker() and passed test.
Merge branch 'reconcileOptionsTests' into refactNov4_2013
Merge branch 'refactNov4_2013' into develop