Cleaned-up definition of grid_cellz
Cleaned up definition of grid_cell
Added comparison operators to grid_cellzk.
Cleaned grid_cellzk_pq.
Recast grid_cellzk as child of grid_cellz and that as a child of grid_cell
Implemented specialized queues for grid cells
Added documentation on @file
Initial import
Ignore doc/ and obj/
Added author's email
Added reading/writing routines for floating-point
Don't track test.cpp
Ignore "test.cpp"
Renamed all *.h files to *.hpp
Include *.hpp files instead of *.h files
Added must_be class, began conversion to C++ I/O functions
Added load_ascii_data() and read_data().
Eliminated extraneous comments.
Set correct headers.
Eliminated load_ascii_data() because it is now in the header file
Fixed grammar mistake
Try to fail gracefully if NODATA_value is not found.
Catches NODATA_value throw correctly now.