Csc-pysparse

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fixed error handling in ll_mat.generalize

fixed name mismatched in solver kernels in itsolvers

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new method itsolvers.bicgstab (implemented by Oliver Broeker)

all solvers in the itsolvers module now check for exceptions after
each precon or matvec call.

solver kernels in itsolvers now have names that conflict less likely
with other modules

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uncommented call to PrintStat in superlu/dgssv.c and superlu/dgssvx.c
to prevent unwanted output in ML package

fixed memory leak in sss_mat.c: diag array was not freed

new method for ll_mat objects: generalize

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updated test modules to reflect earlier bug fix in poisson.poisson2d()

new default precision in ll_mat.export_mtx(): 16 instead of 6

fixed bug in Src/jdsymmodule.c: solution now copied correctly if not
all requested eigenvectors converged.

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fixed bug in SRC/cgs.c: now returns correct iteration count, if initial guess
satisfies stopping criterion

fixed bug in Src/superlumodule.c solve transposed system, since matrix was
passed row-wise

new method for ll_mat matrices: norm(p)

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changed interface of SpMatrix_Matvec(), now supports non-square matrices