Update mail/pear-Mail_Mime to 1.8.0.

Update mail/pear-Mail_Mime to 1.8.0.

1.8.0: 2010-07-29 06:46 UTC

Changelog:

Bugs Fixed:

* Double-addition of e-mail domain to content ID in HTML images [alec]
* #17311: Multi-octet characters are split across adjacent 'encoded-word's
  [alec]
* #17573: Place charset parameter in first line of Content-Type header
  (if possible) [alec]

Implemented Features:

* #17518: addTo() method [alec]

1.7.0: 2010-04-12 12:03 UTC

Changelog:

Implemented Features:

* Added Mail_mime::setContentType() function with possibility to set various
  types in Content-Type header (also fixes problem with boundary parameter
  when Content-Type header was specified by user) [alec]