bulk commit
reset files
restore zero fixing days methods
adapt to refactoring
add gsr test case
remove cap for F (this causes violations of the C^1 property in certain cases)
require decreasing call prices for exponential extrapolation
fix floor pricing
fix error check in vanilla engine tests,
exclude 0.10 strike and change strike 0.07 to 0.06 in cap engine test,
use correct yield and volatility termstructure in cap engine test
Merge branch 'markovfixes20130810' into onefactormodel

Conflicts:
	QuantLib/ql/experimental/models/gaussian1dcapfloorengine.cpp
	QuantLib/test-suite/markovfunctional.cpp