Merge pull request #75 from adamreeve/poroelastic_static_extension_fix

Fix failing static extension example for coupled elasticity and fluid pressure
Fixes for finite elasticity to use a geometric general dependent field
Merge pull request #76 from chrispbradley/master

Fixes for finite elasticity to use a geometric general dependent field
Fixes to the Analytic Laplace test to get it working.
Merge pull request #77 from chrispbradley/master

Fixes to the Analytic Laplace test to get it working.
Update Python examples to use new iron module name
Update C example to use new cmfe prefix
Update C example for new prefix and specification setting
Update Python examples to use specification arrays
Automated conversion of Fortran examples for new prefix and specification array

Had to manually touch up some examples that had a second commented out problem specification set.
Also had to manually fix the Navier-Stokes and Stokes 42Master examples that had multiple problem
specifications.
Fix example to use solver equations analytic boundary conditions

This was missed when the others were fixed previously.
Fix Python examples: ProblemSubTypes -> ProblemSubtypes
Revert changes to LargeUniAxialExtension example

Latest changes make this example fail to solve
Revert changes to cantilever example

The nightly test runs fail to solve with the last changes