fixed some naming spacing problems, some visibile function problems

changed findvisibleprivatefunctions to use shared library since static library still exposes PETSC_INTERN functions

PCTelescope:
* Corrected bug fix and should hopefully also make the static analyser happy

PCTelescope:
* Bug fixes for nullspace

fix loop counters in example and make actual runs of the example in nightly tests

Reported-by: clang static analyzer

a variety of fixes for issues detected by the clang static analyzer

Reported-by: clang static analyzer

A few corrections for items detected by the clang static analyzer

Reported-by: clang static analyzer

PCBDDC: Found more efficient way to compute the initial guess in multilevel

minor formatting cleanup of gamg.c

Merge branch 'master' into stefano_zampini/feature-pcbddc-saddlepoint

Conflicts:
src/ksp/pc/impls/bddc/bddc.c
src/ksp/pc/impls/bddc/bddcgraph.c
src/ksp/pc/impls/bddc/bddcprivate.c

PCBDDC: WIP added support for mixed boundary conditions (works for Darcy). Need to check if it works for Stokes.

Multilevel extension does not currently work with mixed BC or a mix of benign and non

PCBDDC: WIP added support for mixed boundary conditions (works for Darcy). Need to check if it works for Stokes.

Multilevel extension does not currently work with mixed BC or a mix of benign and non-benign subdomains. Need to pass the B0 information to coarser levels anyway, because we need to properly compute the no-net-flux condition at coarser levels.

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PCBDDC: use exact BDDC without dirichlet trick when computing the initial guess

PCBDDC: fix for coding convention

PCBDDC: use one application of the coarse preconditioner to compute the non-benign component of the solution

PCBDDC: add pcis->n and pcbddc->benign_n to the statistics

raise error if adaptive selection is incompatible with pointwise scaling

PCBDDC: fix eigenvalue problem for pointwise scaling

PCBDDC: fix warnings Wmaybe-uninitialized

Merge branch 'hzhang/matpackage-type'

Merge branch 'stefano_zampini/fix-static-analyzer'

Merge branch 'barry/fix-mg-coarse-ksp-defaults'

Merge branch 'sarich/fix-xsdk-packages' into barry/fix-xsdktrilinos

set solvertype for inplace MatxxxFactor()

ml: fix unused variable warning

Reported-by: nightly tests
Funded-by: IDEAS

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

Changed PCMGSetLevels() to NOT set the smoother KSP/PC options on the coarse grid

Reason: It was turning off norm type and convergence test for the coarse grid so
if one ran with -mg_coarse_ksp_type

Changed PCMGSetLevels() to NOT set the smoother KSP/PC options on the coarse grid

Reason: It was turning off norm type and convergence test for the coarse grid so
if one ran with -mg_coarse_ksp_type gmres it ran with inappropriate GMRES options

Now completely different options are set on the coarse and other levels

Reported-by: Dave May <dave.mayhem23@gmail.com>

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These two routines must use TryMethod() because they are supposed
to be ignored if the PCType is not fieldsplit

Reported-by: nightly tests