[PLAT-6531] Added periodic yield curve with spread
[PLAT-6531] Changes from code review, no functional changes
[PLAT-6531] Removed final from method parameters and arguments
[PLAT-6531] Added null check for curve and curveFixed constructor arguments
Merge pull request #69 from OpenGamma/topic/PLAT-6531

[PLAT-6531] Added periodic yield curve with spread
[PLAT-6539] Repointed AnnuityUtils to use ConverterUtils to resolve index. (Marc)
[PLAT-6540] Fixed loop control bug so that all returned ids are tried against the exposure map. (Marc)
REQS-82 - Add parameter to specify length of example time series
[PLAT-6543] Move Sesame Cashflows to Platform
PLAT-6544 - Include stack trace in Failure
PLAT-6545 MultiplecurrencyAmount: Reduce redundant map copies
PLAT-6546 Speed up curve lookup by optimising curve type hashCode
PLAT-6547 Speed up annuity pricing by avoiding intermediate objects
PLAT-6544 - Fix test
PLAT-6544 - Regenerate Joda Bean to synchronize comments
Merge pull request #70 from OpenGamma/topic/PLAT-6544

Marge PLAT-6544 #resolve Fixed
Checkstyle
Merge branch 'develop' into topic/PLAT-6545

* develop:
  Checkstyle
  PLAT-6544 - Regenerate Joda Bean to synchronize comments
  PLAT-6544 - Fix test
  PLAT-6544 - Include stack trace in Failure
[PLAT-6541] Value Greeks for volatility swaps

Reviewed by Tim.
PLAT-6545 minor tidy up from review