Changes to sq_po and sqc_po

modified:   lagrange_sqcurve/Makefile.am
new file:   lagrange_sqcurve/milan_quarter_annulus.cc
modified:   lagrange_sqcurve/sqcurve_po.cc

sqcurve_po.cc is the new quarter annulus.
milan_quarter_annulus.cc - given by Matthias
Makefile.am - changed to work with the new files.

-----------------------

modified:   lagrange_square/run_sqpo.sh
modified:   lagrange_square/sq_po.cc

sq_po.cc: changed the iteration and time output so that I can see it in
std::cout as well.
run_sqpo.sh - some changes... deleted some old commented out code.
New sqcurve files and renames...

renamed:    lagrange_sqcurve/sqcurve_po.cc -> lagrange_sqcurve/sqcurve_po_dirichletall.cc
new file:   lagrange_sqcurve/sqcurve_po_dirichletside.cc
new file:   lagrange_sqcurve/sqcurve_po_neumannside.cc

sqcurve_po_dirichletall.cc
All the boundaries are dirichlet boundaries. This will be used as the
vanilla test case.

sqcurve_po_dirichletside.cc
PO elements are on the out curve boundary, the sides are imposed with
1/r - where r is the radius from the normal.

sqcurve_po_neumannside.cc
PO elements are on the out curve boundary, the sides are determined by
Neumann conditions:
* Boundary 0 (bottom boundary, y=0): x is free, pin y = 0
* Boundary 2 (left boundary, x=0): pin x = 0, y is free