add a tao solver page to man pages for each solver (could be filled in a bit more)

remove DMDAGetGlobalIndices() since handled by DMGetLocalToGlobalMapping() followed by ISLocalToGlobalMappingGetIndices()
fixed cases where bs of ISLocalToGlobalMapping in Mat did not match matrix bl

remove DMDAGetGlobalIndices() since handled by DMGetLocalToGlobalMapping() followed by ISLocalToGlobalMappingGetIndices()
fixed cases where bs of ISLocalToGlobalMapping in Mat did not match matrix block size

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tao: revert tron changes, change should be made in stcg

tao: fixed - allow various ksp solvers in tron

removed MatStructure arguments from Tao

KSPSetOperators() no longer has the MatStructure argument. The Mat objects now track that information themselves. Use KPS/PCSetReusePreconditioner() to prevent the recomputation of the preconditioner

KSPSetOperators() no longer has the MatStructure argument. The Mat objects now track that information themselves. Use KPS/PCSetReusePreconditioner() to prevent the recomputation of the preconditioner if the operator changed in the way that SAME_PRECONDITIONER did with KSPSetOperators()

SNES/TS still need to be cleaned up to better utilize the new interfaces

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completed cleanup of removal of matrix pointers to compute jacobian routines

update changes file

fixed tao examples to no longer use Mat* arguments for Jacobian/Hessian etc computations

fixed argument to TaoVecGetSubVec()

tao: namespace TAO subvec and submat routines and make intern

fix Tao unconventional naming of TAOLINESEARCH_XXX_CTX TAOLINESEARCH_MT etc

changed TaoTerminationReason TaoConvergedReason
changed TaoLineSearchTerminationReason to TaoLineSearchConvergedReason

reason: consistency with the rest of PETSc

updates to Tao per request of Lisandro for Petsc4py

* I would like to have TaoGetConstraintTolerances(), right now I'm
defining it in petsc4py as shown in the link below:
https://bitbucket.org/petsc

updates to Tao per request of Lisandro for Petsc4py

* I would like to have TaoGetConstraintTolerances(), right now I'm
defining it in petsc4py as shown in the link below:
https://bitbucket.org/petsc/petsc4py/commits/ab01ebe336491190a2db85c179c48b1c64fdc673?at=master#chg-src/include/custom.h

* Look at all these definitions, they should be exposed in the C API
to be able to call e.g. TaoSetType(tao,TAOLMVM);
https://bitbucket.org/petsc/petsc4py/commits/ab01ebe336491190a2db85c179c48b1c64fdc673?at=master#Lsrc/PETSc/petsctao.pxiT4

Also removed -tao_method, removed tao_ from names of tao methods and fixed some tao source code formatting

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type caste of function missing void

fixes after merge with master due to DMDA_BOUNDARY -> DM_BOUNDARY

MPIUni bindings for Fortran did not work for quad precision

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support for MPIU operations for quad precision in Fortran now works

docs: fix 'Concepts' keyword in tao examples

remove wierd handling of options and options prefixes in Tao

fixed more Tao print format statements

set tao tolerances for single precision

BTW: there are all kinds of crazy tolerances all over the place; needs to be rationalized

changed TaoSolver usage to Tao

removed taoinitialize and taofinalize

completed renaming of tao include files

added petsc to front of tao public includes

stop using taosolver.h includes