Moved some demos and test files
Squashed 'sglib/' changes from 90f462c..0344bf3

0344bf3 Pushed sglib version
08900b4 Fixed a bug with the setting of options on startup.

git-subtree-dir: sglib
git-subtree-split: 0344bf34a3b0311c65065995fefcd04b79737f9a
Moved the boundary condition stuff to FEM.