Solids - update comment, currently scaling to Pa, though we may want to actually scale to GPa

Solids - small inline function to compute detC_m1 from E2work

Solids - fix bad spelling

make style

Solids - add output of diagnostic variables for viewing

Solids - clean up strain energy computation, prep for plotting stress, strain energy, etc

Merge pull request #538 from CEED/jed/petsc-3.14-gcc-10

Jed/petsc 3.14 gcc 10

cuda-gen: avoid gcc-10 warning on use of strncat

tests: use implicit none; fix datatype mismatches reported by gfortran-10

fortran: use standard z prefix instead of deprecated x prefix for hexadecimal

examples: support for PETSc-3.14 DMPlexGetClosureIndices

examples/solids: extern global in header to avoid duplicate symbols

gitignore: .prove and Python cache

Merge pull request #536 from CEED/valeria/area_refactor

Refactor Petsc area example

Area: Refactoring - Allows the use of the command line option -degree in place of -petscspace_degree

Separate setup of libCEED objects and problem specific data in setuparea.h separate file

BPssphere: remove some dead code, unused variables

Merge pull request #516 from CEED/valeria/NSfixes

Some fixes in NS miniapp

NS: Add Problem header to summary print

Merge branch 'master' into valeria/NSfixes

NS: Improve summary print and update with master changes

The updates with master were needed after reducing the number of commits with interactive rebase

NS: Print summary similar to BPs

NS: style

NS: Add data structures for different test types

NS: Add warning if CtauS or strong_form is used with density_current problem

NS: Add missing CHKERRQ(ierr) & Destroy viewer & bool -> PetscBool