Rebase conflict
Rebase conflict
PLAT-5601, PLAT-5602, PLAT-5595, PLAT-5596, PLAT-5597, PLAT-5598 Support for indices in SecMaster, WebUI, Bloomberg Loaders.
Updated RELEASE-NOTES.md
PLAT-5601 et al. Reviewed-By:Andrew Griffin - changes from review.  Includes deprecation of Tenor.OVERNIGHT, more tests, removal of clumsy code, etc.