Adapted docstring to uniform standard for colons in 'Basis_Function'.

DG_Approximation.py

@@ -5,9 +5,15 @@
 Discussion:
 TODO: Contemplate saving 5-CV split and evaluating models separately
 TODO: Contemplate separating cell average and reconstruction calculations
+    completely
 
 Urgent:
-TODO: Hard-code simplification of cell average/reconstruction in basis
+TODO: Hard-code simplification of cell average/reconstruction in basis -> Done
+TODO: Add documentation to _calculate_reconstructions() in Basis -> Done
+TODO: Investigate protected vs. public variables -> Done
+TODO: Adapt docstring to uniform standard for colons -> Done
+TODO: Investigate decorators and properties
+TODO: Investigate how to make variables read-only
 TODO: Make basis variables public (if feasible)
 TODO: Contain polynomial degree in basis
 TODO: Introduce Mesh class