[REQS-328] Added end-to-end test for bonds based on simple OIS curve. Created standard bill/bond calibrated curves.
[REQS-328] Clean calibration based on bills and bonds. Added end-to-end test for present value and curve sensitivity in the case of bills/bonds calibrated curves.
Merge branch 'develop' into topic/reqs-328

Conflicts:
	projects/OG-Analytics/src/test/java/com/opengamma/analytics/financial/interestrate/datasets/StandardDataSetsMulticurveUSD.java
	projects/OG-Analytics/src/test/java/com/opengamma/analytics/financial/interestrate/fra/provider/ForwardRateAgreementDiscountingMethodE2ETest.java
[REQS-367] Corrected accrued interest in ex-coupon period.
[REQS-328] Cleaned end-to-end tests for bonds and bill/bond curve calibration. Created new Generator Attribute for Exchange Traded (ET) instruments.
Corrected bond and bill node converter to take the conventions into account.
[REQS-328] Modified bill/bond tests for the new generator attribute.
[PLAT-328] Corrected Bucketed PV01 results.
[REQS-328] Removed export from tests.
[REQS-328] Clean code and comments.
Merge pull request #241 from OpenGamma/topic/reqs-328

Topic/reqs 328