add openmp support to bermudan swaption engines
add constructors with observable model parameters
fix refresh of reversion zero indicator
remove unnecessary qualification
add a comment (yet no solution for now)
add omp to swaption engine (not to the other engines for the moment)
make method virtual
improve / fix update procedures
add tenor parameter to underlyingSwap method in SwapIndex,
use this in gaussian 1d models,
replace market cap surface in markov test suite by flat surface if thread safe observable is active
Implement excoupon parameters and payment calendar for CPIBonds, similar to what is already done in FixedRateBonds
Add withPaymentCalendar
Add CPIBondHelper
Add ZARegion
Add ZACPI inflation index
Small little fix in description
Rename more old UK stuff to ZA
Merge branch 'master' of https://github.com/lballabio/quantlib into excoupon_and_payment_calendar_parameters_for_cpi_bonds
initialize member (thanks to Jose Aparicio), use pre-increment instead of post-increment in loops
Add paymentCalendar initialization to CPILeg constructor; Fix withPaymentCalendar() parameter
Merge pull request #109.