Changed setup.py files, and started coding radial dam break example
Added get_plot_args function to Controller.
Refactored code. implemented hr_solver1d in swe2d folder
Some stuff
got rid of hr_solver_1d
using 1d with outflow i hr_solver2d
Added cfix option
Started some new class methods in swe2d.py
Added metric term advancer for radial dam break

TODO: add correct boundary conditions
Added neu_per boundary conditions
added ability to set dt explicitley
Made 1d and 2d radial dam-break codes