Cleaned up global scope
Can now decode the quoted-printable addresses that outlook generates
(code paraphrased from https://github.com/andris9/mimelib )

TODO: Decode address parts according to specification.
From RFC6350:
Special notes:  The structured type value consists of a sequence of
address components.  The component values MUST be specified in
their corresponding position.  The structured type value
corresponds, in sequence, to
the post office box;
the extended address (e.g., apartment or suite number);
the street address;
the locality (e.g., city);
the region (e.g., state or province);
the postal code;
the country name (full name in the language specified in
Section 5.1).