Tahoe Code SVN development benchmark

Adding an example.

Revising the settings.

Beta was removed from the implementation. It should not be implemented when we solve for displacement.

output nodal displacements

Adding an example for test.

adding small strain example using 27 node one element test

on all eight nodes of pressure, they are defined to be zero(not fixed)

adding pressure node sets.

a gnuplot script to reduce data
gnuplot PV-control.gpl

updated to the new syntax