Changeset 83 for trunk/test/src/RpLibraryF_test.f

1. More cleaning of RpUnits and RpLibrary? code
2. added rp_result code to c++/fortran/c code
3. added rp_children, rp_lib_node[comp,type,id] for fortran code (need to test)
4. adjusted convert function to recognize statements as follows:

convert("5J","neV")
convert("3.12075e+28neV","J")

5. made joules a metric unit in RpUnits.cc
6. tested examples/app-fermi/fortran/fermi.f with new rappture library.

added units conversion.