When parsing the JSON response from the HTTP request to create a new certificate... Use `grep -Po` instead of `egrep` as egrep is not matching across all the lines we need to match.

Also trim leading whitespace from `token` by passing it through `tr`.

minor changes.    Update the example help screen to latest version.   Change from "happy Hacker" to "Fale LE" to reflect changes at LE and remove reference to checkssl as it's no longer relevant.

getssl#21 TEMP_DIR creation error

Defensively protect filesystem from rm commands with empty values

`rm` commands, if left unchecked can be dangerous, potentially destroying
unintended parts of the filesystem.

* Protect `rm` commands from empty variables with `${foo:?}` which will produce
  an error if `$foo` is unset or null.
* Create TEMP_DIR with `mktemp`.

Due to the call to create the destination directory
via 'mkdir -p "$(dirname "$to")"', the copy_file_to_location
function requires a filename and not the directory as a
destination.

Use copy_file_to_location as it appears to be intended and
check the exit status from the `cp' invocation for failures.

dns first add all domains, then check all

do nslookup on each domain before starting requests

better csr check, and recreate