Test harness has been rewritten to get rid of unnecessary compiles. Also small issue resulting from two active jobs writing into same file has been resolved.

Integrating the test bed I have been working on. Also integrates the bug fix in cuda_valence_angles. Also one little issue in cuda_forces has been resolved.

sPuReMD: fix SuperLU build and code. Fix ILU_PAR (compute factors separately). Move diagonal preconditioner computation. Refactor precondition computations. General code clean-up.