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

typo in PetscViewerBinaryWrite man page

Sys: PetscCheckPointer PETSC_CHAR checks char*, not char**

with with -> with the the -> the

matlab: build binaries in src/sys/classes/viewer/impls/socket/matlab with gmake aswell

matlab: update matlab related files with the new share/petsc/matlab location

make PETSc MATLAB socket access code store generated .mex files in PETSC_ARCH/lib/petsc/matlab instead of bin/matlab

Fix spurious -Wmaybe-uninitialized warnings

Viewer+HDF5: Avoid HDF5 errors when checking for attributes
- How in the HELL can a major software package print DIRECTLY to the screen even when I am catching the error. You Suck HDF5!

Merge branch 'knepley/feature-plex-hdf5'

* knepley/feature-plex-hdf5: (63 commits)
DMPlex ex2: Added an example that checks a mesh
DMPlex: #ifdef support functions for HDF5
TS: Fix output sequ

Merge branch 'knepley/feature-plex-hdf5'

* knepley/feature-plex-hdf5: (63 commits)
DMPlex ex2: Added an example that checks a mesh
DMPlex: #ifdef support functions for HDF5
TS: Fix output sequence
DMPlex: Check for HDF5 attributes before writing them
DMPlex: Label with timestep number since we do not have times
Viewer+HDF5: Added PetscViewerHDF5HasAttribute()
TS: Set output sequence for timesteps
DMPlex: Handle output sequences - Added static to some functions
DM: Add idea of an output sequence - Added DMGet/SetOutputSequenceNumber() - Added doc for outputDM
REVERT TS: Timestep gets set into DMTS
DMPlex: Fix up HDF5 segregation
DMPlex: Replace MAXPATHLEN with PETSC_MAX_PATH_LEN
DMPlex: Fix HDF5 timestep handling
DMPlex: Set correct block size on HDF5 field vectors
TS: Timestep gets set into DMTS
DMTS: Added timestep
DMPlex: Fix output of fields - Corrected name - Fixed vector type
DMPlex: Return errors from HDF5 function
DMPlex+Viewer: Now output separate fields for viz - Added the PETSC_VIEWER_HDF5_VIZ format for creating viz fields - Added field type determination
Sys+HDF5: Added PetscDataType string and HDF5 support for it
...

Conflicts:
config/BuildSystem/config/packages/__init__.py
src/ts/interface/ts.c

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Viewer+HDF5: Added PetscViewerHDF5HasAttribute()

Sys+HDF5: Added PetscDataType string and HDF5 support for it

ViewerHDF5: Added PetscViewerHDF5ReadAttribute()

ViewerHDF5: Added PetscDataTypeToHDF5DataType() and PetscHDF5DataTypeToPetscDataType(), and PetscViewerHDF5WriteAttribute()

ViewerHDF5: Added a default HDF5 viewer

time out for making socket connection

sample box authorization code that does not work for unclear reaons