converted fvmbook/chap22/corner
missing setrun and setplot for corner problem
Merge pull request #43 from rjleveque/chap22

converted fvmbook/chap22/corner
converted shelf1d example to Clawpack 5 form, and adapted Riemann solver to f-wave form with topo source term, no entropy fix
Merge branch 'notebook_experiments' into shelf1d

* notebook_experiments: (23 commits)
  removed riemann_tools.py, and added to riemann repository in commit 9eb6864.  Modified riemann_tester.ipynb to import from clawpack.riemann
  fixed riemann_solution function to handle scalar problems better, and to also print out amdq, apdq
  changes for HPC3 presentation
  Notebook example to test changing regions in a notebook and rerunning the code -- want to add leaflet gui
  updated HPC3_2014_demos.ipynb
  added description of acoustics system and Riemann solution and changed impedance to make solution more interesting
  Minor improvements to Riemann solution plotting.
  draft of notebook for HPC3 workshop instead of slides
  modified to first plot exact solution alone and then approximate solutions.  Fiddled with q_l and q_r
  fix plot at t=0 by using t=1e-10 in similarity solution
  Unification of code for plotting approximate and exact Riemann solutions.
  add link to file for exact solver
  changed upper time limit in plotting exact solution
  changed start time to 1e-6 in plotting exact solution of Riemann problem -- note that setting to 0 gives divide by zero in computing x/t
  Allow comparison of approximate and exact Riemann solver output, with Euler example.
  Refactor exact Euler Riemann solver to return states, speeds, and reval.
  refactored riemann_tester.ipynb by moving general functions to riemann_tools.py
  increase size of points in mpld3 test
  fixed xmax and added comparison of Roe and HLL solutions
  added 3d plot of phase space, changed states to be numpy array in riemann_tester.ipynb
  ...
added Shelf_1d.ipynb