Add check for test_topo to allow flagging
Change name of test_topo function
changed dt_initial to 2. in chile2010, now respected by geoclaw rather than setting initial dt automatically.
Change Makefile to point to riemann
Remove Riemann solvers
set initial dt to min of dt_initial and estimated value
Merge pull request #25 from rjleveque/rjl

Modify setgrd.f: set initial dt to min of dt_initial and estimated value
Remove docs content (moved to doc repository)
Merge pull request #22 from mandli/test-topo-fix

Fix some minor things with test topography
Merge pull request #24 from mandli/move-riemann-solvers

Move Riemann solvers into Riemann repository
Merge pull request #26 from mandli/rm-docs

Remove docs content (moved to doc repository)
Initial reorg attempt, still missing some planned subdirs
removed extra topotools subdirectory and fixed Makefiles to point to new src structure, and cleaned up environment variables.
Merge pull request #29 from mandli/dir-reorg

Initial reorg attempt, still missing some planned subdirs
changed clawdata to data in setrun files
changed clawdata to data in src/python/geoclaw/data.py
Merge pull request #30 from rjleveque/clawdata

Change module name `clawdata` to `data`.