Fixed error (typo) in formula.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1268 48fcbb9e-5639-0410-8b25-842128a4905d
Fixed typo in comment.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1269 48fcbb9e-5639-0410-8b25-842128a4905d
Added unit test for cap valuation (using LIBORMarketModel and analytic model).

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1270 48fcbb9e-5639-0410-8b25-842128a4905d