Fix PetscObject casts.

Allow the use of a custom H0 in LMVM/BLMVM.

Set a matrix to use as the gradient norm in LMVM/BLMVM.

Merge branch 'sarich/fix-tao-man-objgrad'

TAO ex1: Added comments

tao manpage fix

Merge branch 'barry/fix-stageevent-idtypes'

some code still used int for PetscLogStage

return successful ls codes

changed second argument of PetscObjectViewFromOptions() to PetscObject and all routines that use this routine

TAO ex2: Add optimal control problem from Patrick

TAO ex1: Fix docs

Merge branch 'knepley/feature-plex-bc'

* knepley/feature-plex-bc:
TS: Take out unnecessary declaration
XDMF: Allow missing time dimension
MatSchur: Better check for missing D matrix
TAO ex1:

Merge branch 'knepley/feature-plex-bc'

* knepley/feature-plex-bc:
TS: Take out unnecessary declaration
XDMF: Allow missing time dimension
MatSchur: Better check for missing D matrix
TAO ex1: Updated to new Plex interface
Plex: Fixed bug for FV BCs in DMCreateSection_Plex()
Plex+TS: FIxed DMPlexTSCheckFromOptions()
Plex: Changed the signature of pointwise input functions - Now the spatial dimension and number of fields is passed in
Plex: Fixed bugs with DMPlexCreateSection() - F90 declaration - Do not constrain more than the dog
DM: Can view the global section using -global_section_view
Plex: Now DMPlexCreateSection() also takes the constrained components
Plex: Now BC take constrained field components as well - Changed DMPlexAdd/GetBoundary() - Can use -bc_<name>_comp <nums> to override
Plex: Now -dm_plex_separate_marker works correctly in DMPlexCreateSquareBoundary()
DMLabel: Added DMLabelInsertIS()
SNES: Added DMSNESCheckFromOptions() - Should simplify examples

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TAO ex1: Updated to new Plex interface

Merge branch 'sarich/fix-tao-default-options-guards'

Plex: Now BC take constrained field components as well
- Changed DMPlexAdd/GetBoundary()
- Can use -bc_<name>_comp <nums> to override

add boolean guards to check if tao default options have been changed

Merge branch 'sarich/feature-tao-iteration-count'

Correct the monitor iteration counter

pounders viewer did not cast PetscReal to double in printf nor use %D instead of %d

Set the options prefix correctly on tao->ksp and tao->linesearch.

Merge branch 'sarich/feature-tao-iteration-count'

PetscHeaderCreate: Shorten argument list and optimize memory allocation

* Remove type arguments from the macro
* Use a single memory allocation call instead of three

add accessors to tao iteration counter, tao total iteration count

fixed missing CHKERRQ() detected by clang's --analyze

updated PETSc directory layout to match standard packaging strategies

include/petsc finclude,private,mpiuni
lib/petsc conf
bin/petsc*