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- fixed MED node ordering
- polished 64 bit Cocoa Mac OS X FLTK version
- updated copyright

sparsityPattern

(10 times faster for a typical CG matrix on p6 tet)

allocated

(fracture in bending OK) 3) lua version of code 4) a test case with 3rd
order quadrilateral element. 
Some modifications are made in linearSystem (add a function to compute
norm of RightHandSide) and in dofManager (add a function to have the
fixed dof outside dofManager)

base class was not defined
try it again ...