rename is_success to accepted
rename is_success to accepted

also move reason_text to a lexically scoped variable outside of the
subroutine, will take a little more memory, but in theory should be faster

Signed-off-by: Caleb Cushing <a9685b85fd9e0f422447bbe825117a592b3fd70d@gmail.com>

Jayceh/Business-CyberSource