minor fixes to PetscInfo() formating

simplify option object names

SNESFAS: Remove unused variable

DMCreateInjection: use MatRestrict where coarse Vec is zero

Rather than pulling the scatter context out of the injection matrix and
using INSERT_VALUES, if we know the coarse Vec is already zero we

DMCreateInjection: use MatRestrict where coarse Vec is zero

Rather than pulling the scatter context out of the injection matrix and
using INSERT_VALUES, if we know the coarse Vec is already zero we can
just use MatRestrict directly.

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moved PetscOptionsObject from global variable to local variable in functions

DMCreateInjection: return Mat rather than VecScatter

For (amongst others) FV discretisations, the natural injection may well
be cell averaging, which is not expressible as a VecScatter.

manual merge of conflict

Merge branch 'knepley/fix-snesvi-types'

* knepley/fix-snesvi-types:
SNESVI: Got rid of a superfluous type change

SNESVI: Got rid of a superfluous type change

removed excessive object reference that now leads to leaked memory

Merge remote-tracking branch 'pefarrell/snes-composite-get-number'

* pefarrell/snes-composite-get-number:
Add the function declaration for SNESCompositeGetNumber.
Add a function to get the numbe

Merge remote-tracking branch 'pefarrell/snes-composite-get-number'

* pefarrell/snes-composite-get-number:
Add the function declaration for SNESCompositeGetNumber.
Add a function to get the number of subsneses in a SNESCOMPOSITE.

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Merge branch 'knepley/doc-snes'

* knepley/doc-snes:
SNESGS: Put in an explanation of the FD GS update
SNES: Add options database keys for norm schedule

# Please enter a commit message to explai

Merge branch 'knepley/doc-snes'

* knepley/doc-snes:
SNESGS: Put in an explanation of the FD GS update
SNES: Add options database keys for norm schedule

# Please enter a commit message to explain why this merge is necessary,
# especially if it merges an updated upstream into a topic branch.
#
# Lines starting with '#' will be ignored, and an empty message aborts
# the commit.

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SNES FAS: Better comments

SNESGS: Put in an explanation of the FD GS update

Add a function to get the number of subsneses in a SNESCOMPOSITE.

convert some PetscMalloc() to PetscMalloc1()
remove unneeded () in first argument to PetscMalloc/Calloc1()
fixes for MATLAB examples

Merge branch 'maint'

Conflicts:
config/BuildSystem/config/packages/ml.py
src/ksp/pc/impls/mg/mg.c

fix formatting of some manual pages
specifically remove use of $ from the middle of parameter or options lists

Merge branch 'barry/fix-options-default'

Conflicts:
src/ksp/ksp/examples/tutorials/ex52.c

update use of PetscOptionsBool() to not rely on default setting automatically

cleanup of use of PetscOptionsInt and friends including use of flag final argument

fixed documentation for PetscOptionsXXX that refered to "default value" when they really mean current value
also fixed usage of PetscOptionsEnum() with regards to current value in several calls

Repo

fixed documentation for PetscOptionsXXX that refered to "default value" when they really mean current value
also fixed usage of PetscOptionsEnum() with regards to current value in several calls

Reported-by: Ed Bueler <elbueler@alaska.edu>

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MatGetVecs() and KSPGetVecs() replaced with MatCreateVecs() and KSPCreateVecs()
since they are creators not getters

Placate static analyzer complaints about unreachable code

Henry Tufo's "shared separator" project is unlikely to be completed, at
least not by him, so delete the incomplete code fragment.

Reported-