21.06

Changed syntax for iterators.
Implemented connected one-dim meshes, as opposed to fuzzy meshes.
Garbage collector for cells and meshes still buggy.
Manual got prettier.

21.04

Finite elements work in a rather rudimentary manner for now.
Functions do not leak memory any more.
Cells and meshes still leak memory.

21.02

Mesh generation works well. Some examples may not work.