Organized imports.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1349 48fcbb9e-5639-0410-8b25-842128a4905d
Portfolio is now a component.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1350 48fcbb9e-5639-0410-8b25-842128a4905d
Periods allow to exclude accrued interest (not however that this is not bound to a proper day count convention (will be added in the future)).

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1351 48fcbb9e-5639-0410-8b25-842128a4905d
Code cleanup.

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1352 48fcbb9e-5639-0410-8b25-842128a4905d
Option allows for a stochastic strike (given as a product component).

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1353 48fcbb9e-5639-0410-8b25-842128a4905d
Fixed a bug in getCurrency (introduced in the last commit).

git-svn-id: http://svn.finmath.net/finmath%20lib/trunk@1354 48fcbb9e-5639-0410-8b25-842128a4905d