Removed cc and bcc from each email that gets sent.

Emails are sent to each address separately - no matter if in "to", "cc" or "bcc". Including cc and bcc in each email caused multiple emails to these addresses. Removing the cc and bcc from each mail solves this.
Merge pull request #52 from AlexTi/bug/duplicate-cc-in-mailings

Removed cc and bcc from each email that gets sent.