autoload global-undo-hungry-delete-mode

Signed-off-by: Thomas Hisch <t.hisch@gmail.com>
First attempt at obeying Transient Mark Mode.
Docs: Move README to README.md.
Docs: Filling, spacing, grammar.
Docs: Github Markdown code block.

Also note that the code block is Elisp.
Docs: Content.
Docs: Make .el and .md docs agree.
Fix docs.
Remove Overwrite code from delete-backward-char.

This assumes there is a prefix, which there is not.

The equivalent of this code in delete-backward-char may be worth
replicating more accurately in this package in the future.
Update docs to talk about Transient Mark Mode.
Do not autoload "iter" functions.
Merge pull request #8 from mwfogleman/docs

Docs
Merge pull request #7 from mwfogleman/transient-mark-mode

Transient mark mode
Merge pull request #5 from thisch/autoload

autoload global-undo-hungry-delete-mode