Implement r0 evolution using PSD of log(r0).
Fix compiling issues in centos5/rhel5
Debugged r0 variation implementation.
PSD of ln(r0) is 0.00195fm^-1.43 /(1/min) when fm is in minute. If use second, the PSD is
0.00195*60*(fs*60)^-1.43 or 3.353e-4 fs^-1.43 /Hz
Improved the way powfs are input into maos.
Include each powfs_*.conf adds a new powfs.
Use wfs_*.conf
Fix compiling issues in RHEL 5 and 6