chang notification delay to two open days
example update
extend example
add sbsmilesection
add sbsmilesection
change reference date in pricing from today to model reference date,
handle case when fixing is today or in the past
change criterion for optional flows to exercise <= accrualStart
remove depricated useNtl setting in test case
for limited strike region sections put the endpoint(s) in the grid
add endpoints for sections with limited strike range,
move deleteArbitragePoints from KahaleSmileSection to SmileSectionUtils,
delete unused member variables,
use otm option to imply volatility from price,
reformat source code
change criterion to identify optional flows to exercise date <= accrual start date
Merge branch 'fixes20130928'

Conflicts:
	QuantLib/ql/experimental/models/kahalesmilesection.cpp
	QuantLib/ql/experimental/models/kahalesmilesection.hpp
	QuantLib/ql/experimental/models/smilesectionutils.cpp