Merge branch 'balay/tao-to-petsc'

Conflicts:
src/snes/impls/fas/fasfunc.c
src/snes/impls/fas/fasgalerkin.c

fixed more Tao print format statements

set tao tolerances for single precision

BTW: there are all kinds of crazy tolerances all over the place; needs to be rationalized

changed TaoSolver usage to Tao

move tao vector operations over to Vec directory, fix a couple names and calling sequences

fixed quote marks for includes to <>

tao: remove trailing spaces from sources

tao: untabify sources

update more tao code to modern PETSc, remove PETSC_NULL, some formating

removed some uses of %G updated those files to use proper PETSc style code

TAO: Update for no type arguments in PetscNew and PetscNewLog

I used Jed's script from b00a91154f763f12aa55f3d53a3f2776f15f49e3,
but removed the '-- $1' bit (which I didn't understand and which
didn

TAO: Update for no type arguments in PetscNew and PetscNewLog

I used Jed's script from b00a91154f763f12aa55f3d53a3f2776f15f49e3,
but removed the '-- $1' bit (which I didn't understand and which
didn't work) to get

git grep -l 'PetscNew\(Log\)\?(' | xargs perl -pi \
-e 's@PetscNew\([^,;()]+ *, *@PetscNew(@;' \
-e 's@PetscNewLog\(([^,;()]+) *,[^,;()]+, *@PetscNewLog($1,@;'

show more ...

tao: fix include from src/* to ../src/tao/*

tao: move tao/src/* petsc/src/tao/