Merge branch 'barry/not-single-precision' into barry/remove-unneed-tao-tolerances

remove fatol and frtol concept from Tao; they are redundant and confusing compared to other tolerances

move a couple more examples that do not produce constant results in single precision

fix violations of PETSc style guide: Usage of SETERRQ and NULL

Merge branch 'master' into barry/always-mark-floats

Needed to merge in master to resolve conflicts that will appear when this branch is merged with master

changed outdate mpirun and -np to mpiexec and -n

fortran example with test output must sort output before comparing

Insure all %g output floating point numbers have a decimal point in them
this is to make it easy to detect floating point processing in output for test purposes
provided new diff operation that

Insure all %g output floating point numbers have a decimal point in them
this is to make it easy to detect floating point processing in output for test purposes
provided new diff operation that treats all floating point numbers in output as equal

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example output should have 1 for line search termination value of success
%d should be used with a (int) cast

fix minor issue with unused options printed into test output file

Jason changed a default TAO tolerance but did not update example test
output that viewer the tolerance

set to null in create method

Merge branch 'pefarrell/tao-set-riesz-map'

tao-handson: reformat html output files so that docsetdate doesn't process them

doc: add in tao handson.html from http://www.mcs.anl.gov/research/projects/tao/tutorials/atpesc/handson.html

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.