Added maximum index.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1358 48fcbb9e-5639-0410-8b25-842128a4905d
Small performance improvement.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1359 48fcbb9e-5639-0410-8b25-842128a4905d
Removed unused indexing and reference to model discretization.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1360 48fcbb9e-5639-0410-8b25-842128a4905d