[PLAT-6714] Added swap test for Fed Fund v Libor swap.
[PLAT-6714] Added more swap examples (basis swap). Added generator for OIS leg (ONCompounded).
[PLAT-6714] Added cubic spline interpolator for Fed Fund swap curves.
PLAT-6741 added 25 year to USD curve test data
[PLAT-6714] Added lege generator with coupon ON AA simplified. Refactor some of the generators for the swaps (generic legs).
[PLAT-6714] Changed tests results to fit with the new curve interpolation and data.
[PLAT-6714] Added swap ON Cmp v ON AA to the swap tests list. Corrected toDerivative in CouponONSpread to take the spread into account.
[PLAT-6714] Added pv test with Fed Fund based curves.
[PLAT-6714] Added more end-to-end tests.
[PLAT-6714] Added XCcy generator. Added Xccy swap example in the swap tutorial.
Merge branch 'develop' into topic/plat-6714
[PLAT-6714] Added curve calibration of ON rate in XCcy settings.
[PLAT-6714] Clean files for comments and javadoc.
[PLAT-6714] Change hierarchy for GeneratorLegON. All generator are now child of the same abstract class. Added test coverage.
[PLAT-6714] Clean comments.
Merge pull request #181 from OpenGamma/topic/plat-6714

Topic/plat 6714