MatNorm: fix missing PetscLogFlops

Reported-by: Anishi Gupta <anishi.anishi@gmail.com>

set solvertype for inplace MatxxxFactor()

Fix null output from PCFactorGetMatSolverPackage();
Reported-by: Jose E. Roman <jroman@dsic.upv.es>

Merge branch 'hzhang/matgetsubmat_sbaij1'

Fixes found by clang static analyzer
mostly set but unused variables plus a couple of true bugs

cleanup MatGetSubMatrices_MPISBAIJ()

cleanup: rm MatGetSubMatrix_SeqSBAIJ_Private(); factor out MatSeqSBAIJZeroOps()

rm checking of (isrow != iscol) in response to Jose's request for SLEPc; Zero some ops' to avoid invalid use of MatGetSubMatrices_SeqSBAIJ()

PetscDraw: Proper implementation of PETSC_DRAW_NULL

* Remove special casing of PETSC_DRAW_NULL in the draw interface
* Rework handling of PETSC_DRAW_NULL in Draw{Axis|LG|SP|BAR|HG}
* Some 'extern' -

PetscDraw: Proper implementation of PETSC_DRAW_NULL

* Remove special casing of PETSC_DRAW_NULL in the draw interface
* Rework handling of PETSC_DRAW_NULL in Draw{Axis|LG|SP|BAR|HG}
* Some 'extern' -> 'PETSC_INTERN' fixes
* Add missing error checking

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Merge branch 'barry/fix-private-functions'

PetscDraw: Explicitly save draw in {Vec|Mat|DMDA}View() routines

PetscDraw: Fix MatView() for MAT{SEQ|MPI}{[S|SB]AIJ|DENSE}

Cholmod routines mistakenly listed as static but used in multiple files

Tao Fortran stubs not properly marked with PETSC_EXTERN so would not work with multiple libraries and visibility turned on
Fixed a couple more unneccessarily visible functions

More decreasing visibility of symbols from outside libraries
Also fix a few bugs related to having multiple PETSc libraries

Print a better error when someone sets a MatOption that that matrix is not ready for yet.

Reported-by: Mark McClure <mark.w.mccl@gmail.com>

Merge branch 'hzhang/inode-erroriffpe'

missing 'bs' in the doc of MatSeqSBAIJSetPreallocationCSR - reported by Marco Schauer

optimize by moving allowzeropivot = PetscNot(A->erroriffailure) out of loop

allow zeropivot PetscKernel_A_gets_inverse_A()

replace !PetscBool with PetscNot(a)

add allowzeropivot and zeropivotdetected to PetscKernel_A_gets_inverse_A_#

rename crash and wouldcrash -> allowzeropivot and zeropivotdetected as suggested by Barry

add 'PetscBool crash,PetscBool *wouldcrash' to PetscKernel_A_gets_inverse_A_3() to handle zeropivot error

Merge branch 'hzhang/matpackage-erroriffpe'