Add interface coordinate system

Example updated: CoupledLaplace problem

Tracker item:3118
Merge pull request #43 from xyan075/master

add coordinate system to interface region
Update MoreComplexMesh example for versions

Add version numbers when calling Field_ParameterSetUpdateNode
so that this example works with the current OpenCMISS library.
Also add a nightly test. Tracker item 3284.
Merge pull request #46 from adamreeve/mesh_example

Update MoreComplexMesh example for versions
Merge pull request #45 from vraj004/master

Test examples for reaction diffusion
Merge pull request #47 from vraj004/6a79207eb12515e6cb09f9517a289971233fa9c9

Oops!
Add Laplace example with point Neumann conditions

This example solves Laplace's equation over a rectangle or
rectangular box, with one face fixed and one with point
Neumann conditions applied, using the Python bindings.
Add Cylinder example using Neumann conditions

This example solves Laplace's equation in a cylinder, with
the inner surface fixed and outer surface with a derivative
applied. It uses the Python bindings.
Remove old Poisson equation Neumann contidion examples

Most of these didn't appear to work correctly or at all,
even before rewriting the Neumann conditions implementation.
Test cylinder example with two processors

FieldML output seems to be broken in parallel, and
the decomposition can also change so don't set any
expected results.
Add test for Neumann point conditions in 1D
A quick fix for the exception with invalid json configurations. No relevant tracker item.
Put the example with invalid JSON configuration to a file. Tracker item 3301.
Merge pull request #49 from tyu011/master

Quick fix to catch exception with invalid json configuration.
Use integrated only Nuemann conditions where appropriate

These allow us to prevent point values being integrated on the
wrong side of corners. Previously using a normal integrated
Neumann condition had the same effect but we might want to
allow adding point and integrated Neumann conditions.
Add expected results for 1D Neumann test
Update cubic Hermite expected results for Cantilever example

These were incorrect for cubic Hermite interpolation but only by a small
amount that wasn't noticed. The scale factors were fixed the cm
repository, commit d55394581005f7af34d3ff0c4f0d87c0c34f9b8d.
Merge pull request #50 from adamreeve/master

Fix cubic Hermite cantilever expected results
Test Neumann point conditions with cubic Hermite interpolation
Fix sign of Neumann point values

This was incorrect as the intergrated values were being added to the
solver right hand side with the wrong sign.