NOTES

We would like to be able to do the following:
   1. specify things directly on the command line like before
   2. read xml snippets and then override their values
      2A For example: --dmcblock dmc.xml --dmctstep 0.01
      2B Think about format for jastrows.  Probably do the following: --onebodyjastrowblock Be Beonebody.xml.
         There is a difficulty with how to addess those parameters though: Probably stick with only being able
	 to globally change jastrow parameters.
      2C In order to do this, we will need to be able to hand xmlNodes to the various constructors.
         Be careful here about memory leaks!!!
   3. point the code to where an optimization was done and then have it use that determine the "optimal" wavefunction
   4. With regards to how the code is set up to generate qmcpack input files, probably best to just have
      an option like --qmcinputfile and then after all of the options changing things about the particleset,
      wavefunction and the like, just have it do --qmcaction a b c... where a is the number of the action, b is the
      type of the action, and then everything in c are options to be handled by the type of action listed in b,
      and this is terminated by the next qmcaction block

   5. Think about creating a atomlibrary type of xml file
      <atomlibrary>
        <atom elementType="Symbol" isAllElectron="yes/no" ppHash="md5sum">
	  <jastrow type="OneBody" function="Bspline">
	    <correlation elementType="Symbol" cusp="xxx" size="xxx" rcut="xxx">
	      <coefficients ....>
	      </coefficients>
            </correlation>
          </jastrow>
	  <jastrow type="OneBody" function="pade2">
	    <correlation...>
	      <coefficients ... >
	      </coefficients>
            </correlation>
          </jastrow>
	  <jastrow type="eeI" function="polynomial">
	    <correlation ...>
	      <coefficients ..>
	      </coefficients>
	    </correlation>
	  </jastrow>
          <hybrid>
	    <parameter name="cutoff_radius>xxx</parameter>
	    <parameter name="spline_radius>xxx</parameter>
	    <parameter name="spline_npoints>xxx</parameter>
	    <parameter name="lmax">xxx</parameter>
	  </hybrid>
	</atom>
      </atomlibrary>