Remove semicolons from filenames so that goreportcard will work

Fix the from-archive target to build both binaries

Remove python-typedstream from the list of dependencies

Include counts of invalid messages

e.g. when the text and attributedBody columns are both NULL.

Use the copied filename when referencing an attachment

Fixes #36

Remove Mkdirall tests that don't add any value

Sanitize entity names ending in dots

Create pull_request_template.md

Warn instead of failing when HEIC file conversion fails (#21)

* Warn instead of failing when HEIC file conversion fails

* Add a results printout.

Dynamically increase the open files limit if needed (#14)

* Skip attachments for which files don't exist locally

* Increase the open files limit if necessary

* Improve wrapping of long URLs in PDFs