All files are now orgel documented.

Lentic should probably use itself!
Split lentic.el code into -mode and -dev.

Previously lentic.el contained a minor mode, and some dev functionality.
All this has been moved into different files now to enable the use
of lentic entirely as an API only.
Fix variable name.
More examples added.
README added for examples.
Makefile for test.
noisy-change.el support file added.

This file is useful for checking what is happening with lentic but is
not actually part of it.