Script places in tomcatsvn; calls waveletFFT.py; downgrade to optparse

1) The script singleSliceFunc.py is supposed, now, to be run from /afs/psi.ch/project/tomcatsvn/executeables/ .
2) It calls the routine waveletFFT.py placed in /afs/psi.ch/project/TOMCAT_pipeline/Beamline/tomcat_pipeline/src/Reconstruction/ .
3) The module argparse has been downgraded to optparse to be compatible with the default version of Python available on console 6 ( Python-2.6.6 ).