added transformed parameter tests back to generator, generate new log probability function for double parameter vectors
added transformed parameter tests back to generator, generate new log probability function for double parameter vectors

stan-dev/stan,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/stan,stan-dev/stan,stan-dev/math,stan-dev/stan,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/math,stan-dev/stan