Fixing the tutorial examples to handle new API changes in TSIJacobian and KSP-FormJacobian routines. Remove MatStructureFlag and use Mat instead of Mat*.

Refactor code for simplex connectivity.

Modifying makefile to specify the C++ sources using the new SOURCECXX var.

Remove the redundant NULL assignment to a destroyed object.

Replace PETSC_NULL with NULL.

Change extension of examples (tests, tutorials) to be cxx since MOAB dependency explicitly makes them only C++ compatible.

Fixing all examples to use the new API for DMMoabCreateBoxMesh. Also updating run commands in makefiles.

Modifying the BoxMesh creation function to also generate simplices (triangles and tets) in a structured fashion. This complements the quad, hex generation. Now the createmesh function takes an option

Modifying the BoxMesh creation function to also generate simplices (triangles and tets) in a structured fashion. This complements the quad, hex generation. Now the createmesh function takes an optional isSimplex argument.

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Updating the output files for tutorials and tests programs

Fixing a bug in options for read/write where there was garbage in newly initialize char arrays.

Add the capability to access the block or material number for each entity.

Fix a typo in the PetscOptions* help

Fix the tutorial example issues related to PetscNew. Also adding the makefile which was missed before, to compile all the examples.

Updating DMMoab interface to the latest PETSc changes related to PetscNew. Removing occurrences of stringstream and replacing with PetscSNPrintf for manipulating IO options.

Adding DMSetFromOptions_Moab to unify all options database retrieval from command line. Added appropriate storage fields in data-structures and made sure that they are universally used, consistently.

Adding DMSetFromOptions_Moab to unify all options database retrieval from command line. Added appropriate storage fields in data-structures and made sure that they are universally used, consistently. Still need to figure out: how to propagate read options to DM before DMSetFromOptions is called.

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Fix a bug when user provides a ltog_tag that is invalid and expects a valid one back on call to DMMoabCreateMoab. Other misc cleanups in examples.

API change, bug fix and new test file along with output.
Fixing a nasty bug in DMMoabSetGlobalFieldVector when using MoabVec.
Slight modification of the DMMoabSetFieldNames interface.
Bug was f

API change, bug fix and new test file along with output.
Fixing a nasty bug in DMMoabSetGlobalFieldVector when using MoabVec.
Slight modification of the DMMoabSetFieldNames interface.
Bug was found using the new test file ex2.c which does the following:
- Creates a mesh in memory or optionally from a user specified input file
- Propagates tags with variable names as specified by user or assumes a single variable by default
- The variables defined on the mesh are populated with random data
- User can optionally write out the resulting mesh database for visualization/analysis.
- Test output added for future reference.

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Adding more documentation to all main source files and making sure the documentation is generated according to PETSc standards.

Creating a tutorials directory and moving files to appropriate locations. Now can add more specific unit tests that dont conflict with integration tests/tutorials.

Adding documentation to describe DMMOAB type.

Documentation updates for all the DMMoab implementation sources and re-arranging routines to place public API first and static/private routines next.

Adding documentation to the DMMoabOutput API routine.

Fixing compilation errors in the PSI example. Needs more work and to be updated based on Barry's ex10 example

Changed the faulty interface that was reverted in previous commits for DMMoabSetFieldName.

Documentation and other updates for field handling in DMMoab.
- Adding detailed documentation for the DMMoabField* API functions.
- Renamed DMMoabSetFields to DMMoabSetFieldNames to be consistent.

Documentation and other updates for field handling in DMMoab.
- Adding detailed documentation for the DMMoabField* API functions.
- Renamed DMMoabSetFields to DMMoabSetFieldNames to be consistent.
- Added DMMoabGetFieldName.

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