updates mostly to geoclaw docs
typo
Fix typo in script name

Address issue #21
Many updates to amrclaw and geoclaw documentation to bring up to date.
small fix
Merge pull request #22 from rjleveque/amr_geoclaw_updates

Updates to amrclaw and geoclaw docs
changes to index and layout
Merge pull request #23 from rjleveque/layout

changes to index and layout
First changes
Updated documenation
Added documentation for the Matlab graphics
More modifications to Matlab plotting documentation
Merge pull request #25 from donnaaboise/Matlab_docs

Documentation for Matlab plotting routines
Fix PyClaw gallery links to plots and eliminate README links.
Merge pull request #26 from ketch/fix_pyclaw_gallery

Fix PyClaw gallery links to plots and eliminate README links.