Update multilayer 1d examples to new 5.0 packages

This commit addresses the following changes:
 - Renaming of the Riemann solvers in the Riemann repository
 - Changing of the data module from `clawdata` to `data`
Some other fixups are also included.
Add more info on method comparison
Add info text for shelf contour plots
updated chap7/acouinflow
Added chap7/advinflow
added chap7/standing
Updated from clawdata to data
Add bathy download script for atlantic
Add bathy download script for Gulf
Modify old Irene setrun to Sandy
added chap13/collide
Added variable coefficient traffic example from Chapter 16.
Merge pull request #11 from rjleveque/fvmbook

Improved conversion scripts and added some fvmbook examples
added chapter17 advdiff
examples from chapter 11
added chap17/onramp
Update README.rst
Merge pull request #14 from jihwan-kim/fvmbook

examples from chapter 11
fixed maxmx but in qinit.f and other changes to fvmbook/chap3/acousimple
Merge pull request #16 from rjleveque/fvmbook

fixed maxmx but in qinit.f and other changes to fvmbook/chap3/acousimple