Fixed huge bug where error was not being propagated correctly in the computeE function. Also added maximum world space error metric which seems more correct even though it rarely affects the actual output compared to incremental world space error.
Starting to plan out the dem module.
Added changes from time spent in Savannah using MATLAB. Now able to preprocess data and store it so you dont need to compute it every time. PreProcessed6 takes about 30 minutes because of the naive recursive approach. Will need to make a memoized version for computing off-core error metrics or it will take decades to process even a 1024x1024 heightmap.
removed testmesh.m because all the code in it has been migrated to testRender.m
Merged with master
Merge branch 'master' into experimental-josh
Merge branch 'experimental-marvin' into experimental-josh
Narrowing down the image driver structure.
Fixed compile errors for my computer. Marvin could you test these on yours
Continuing creation of the DiskImage structure.
Working on unit tests
Improving Geodetic Unit Tests.
now show all build commands if -v option is used. Helpful for debuging linking errors
added barebones build set up for terrain-explore app
Now have basic OpenGL example working
read image for DiskImage is created.  I need to have the drivers implemented still.
Working on write image function.j
merging Joshs updates.
Fixed changes.
temp