Add libreg/doc/model/FirstSecondOrder.pdf to document calculation of 2nd order steady ramp delay (p 36)
Update cctest/scripts/tests/SPS_MPS/sps.cct to check CLBW and CLBW2 to 20 instead of 30 (now unstable)
Update cctest/src/ccInit.c to improve readability in Eclipse
Update libreg to change vs step_rsp_time_iters into vs_delay_iters and vs_tustin_delay_iters
Update cctest to use new vs_delay_iters from libreg