add kSqrtPi
add new kinematics var enums
add ASKXSec Cross Section
add ASKXSec Cross Section header
bring in GSLXSecFunc updates (believed to be needed for single kaon)
bring in ASKXSec to LinkDef, along with GSL integration function wrappers
add ASK constructor to Interaction/Interaction
add ASK constructor to Interaction/Interaction header
helper functions for ASK in Interaction/KPhaseSpace
helper functions for ASK in Interaction/Kinematics
helper functions for ASK in Interaction/ProcessInfo
helper functions for ASK in Interaction/ProcessInfo header
helper functions for ASK in Interaction/ScatteringType header
helper functions for ASK in Interaction/XclsTag
helper functions for ASK in Interaction/XclsTag header
add strange ff to LwlynSmithFF
add strange ff to LwlynSmithFF header
add Simpson3D to LinkDef
add Simpson3D integrator to Numerical
add strangeness to some QEL codes