Fixing FindBugs problems
Merge branch 'develop' of github.com:OpenGamma/OG-Platform into develop

Conflicts:
	projects/OG-Analytics/src/test/java/com/opengamma/analytics/financial/provider/curve/InflationBuildingCurveSimpleTest.java
FindBugs fixes.
Narrowing visibility of fields
Adding equals methods
Making spread annuities consistent with ibor coupon annuities
Merge branch 'develop' of github.com:OpenGamma/OG-Platform into develop