Synopsis
		sfbandpass < in.rsf > out.rsf flo= fhi= phase=n verb=n nplo=6 nphi=6

November 2012 program of the month:
http://ahay.org/blog/2012/11/03/program-of-the-month-sfbandpass/

Parameters
		float fhi= High frequency in band, default is Nyquist   float flo= Low frequency in band, default is 0   int nphi=6 number of poles for high cutoff   int nplo=6 number of poles for low cutoff   bool phase=n [y/n] y: minimum phase, n: zero phase   bool verb=n [y/n] verbosity flag

Used In
		CWP          geo2006TimeShiftImagingCondition/zicig geo2008IsotropicAngleDomainElasticRTM/marm2allA geo2008IsotropicAngleDomainElasticRTM/marm2oneA geo2011WideAzimuthAngleDecomposition/seam357 jse2006RWEImagingOverturningReflections/sigsbee