stresses and strains passes as material internal variables, other modifications
This commit was manufactured by cvs2svn to create tag 'END_BRANCH_david_2'.
bug fix in fNumstep_crit in ComputeThetaTable3D
Intermediate checkin
__GNU__ replaced with __GNUC__
added files to make tree
(just about completed) calculation of the mass flux ad flux velocity
disable material force by default
moved configuration headers into config directory in the build tree
implemented calculation of stress gradient driving term
