updated chap7/acouinflow
Added chap7/advinflow
added chap7/standing
added chap13/collide
added chapter17 advdiff
added chap17/onramp
Update README.rst
Merge pull request #16 from rjleveque/fvmbook

fixed maxmx but in qinit.f and other changes to fvmbook/chap3/acousimple
Merge pull request #15 from smoe0826/fvmbook

Added examples for chapter 7,13 and 17

Work for me.
fixes to some README files