Removed completed TODOs.

Snakefile

@@ -38,11 +38,6 @@ TODO: Discuss extracting all objects from UpdateScheme and giving equation as
     input instead
 
 Urgent:
-TODO: Check whether 'projection' is always a ndarray -> Done
-TODO: Add property attribute for num_ghost_cells -> Done
-TODO: Ensure compatibility with arbitrary number of ghost cells -> Done
-TODO: Move 'do_initial_projection()' to 'projection_utils.py' -> Done
-TODO: Extract equation-related functionality into LinearAdvection class -> Done
 TODO: Enforce num_ghost_cells to be positive integer for DG (not training)
 TODO: Add Burger class
 TODO: Use cfl_number for updating, not just time (equation-related?)