improve integration boundaries
remove requirement between capacity/load and changeRate for a storage
option
added Folin's integration methods
added Folin's integration metods
Odd Ts convolution
removed unused variable
allow assignment and copy
modify limit normalization
fixed behavior of the Bjerksund Stensland engine for very small
volatilities
Added zero rates conversion on InterpolatedZeroCurve, exposed some classes
to SWIG
Document fix for Mac OS X 10.9 build.

Thanks to Albert Azout for the instructions.
moved annual to NoFrequency in continuous compounding conversion
replaced tabs with spaces on swig files
added FdBlackScholesVanillaEngine, FdBlackScholesAsianEngine and
ContinuousArithmeticAsianLevyEngine to the SWIG interface definition
fixed accidentally committed versions
added shape and better capacity/changeRate support for storage engine
better support of min-take for swing options
fixed formatting
fixed VC warning
fixed VC warning
Merge branch 'master' into T_convolutions