448648: MailUtility.collectMailParts: inline attachments are not
collected

Change-Id: I4f0c47496de869b944846b0fd08b720b8fe5f944
Task-Url: https://bugs.eclipse.org/bugs/show_bug.cgi?id=448648
Reviewed-on: https://git.eclipse.org/r/35482
Tested-by: Hudson CI
Reviewed-by: Bruno  Koeferli <bruno.koeferli@bsiag.com>
Fixed typo in MailUtility: attachements --> attachments

Change-Id: I8c9f1f50420807ed1766a07120095c71bd4fc435

Reviewed-on: https://git.eclipse.org/r/35483
Tested-by: Hudson CI
Reviewed-by: Bruno  Koeferli <bruno.koeferli@bsiag.com>