Safeguard implemented. Needs list to check against
pure function list
Safe list working
More robust safe-eval

Treat correctly quotes, backticks, lambdas, lets
Bug fixes
Create and save the list to a file
Interactively add functions to the list.
Remove repeated definitions
Update overlay on point move, not just on edits.

Only updates if points moves to a different toplevel sexp.
So it is not overdone.
litable-update-on-move customization variable

Allows user to disable update-on-move behavior.
Merge pull request #13 from Bruce-Connor/safeguard

Safeguard
Merge pull request #14 from Bruce-Connor/update-on-move

Update overlays on movement