Use the available multipart content-type to add HTML code to bounces (h…

…araka#2091)

* Added HTML Bounce ability

release 2.8.15 (haraka#2095)

* release 2.8.15

prep release 2.8.14 (haraka#1932)

* prep for next release

* update Changes

* improve Changes formatting

* make the rest of the versions h2

* update Changes

Merge pull request haraka#1798 from msimerson/release-2.8.13

release 2.8.13

update Changes (haraka#1749)

* update Changes

* version bumps

* update generic-pool to 2.5.0 (might help haraka#1533)

* update Changes

Merge pull request haraka#1733 from msimerson/haraka-2.8.11-2

update release date

Merge pull request haraka#1654 from msimerson/haraka-2.8.10

version bump and Changes update

typo fix (haraka#1627)

update package.json (haraka#1543)

* update package.json

* updated Changes

* updated dep versions

* revert maxmind version update

Merge pull request haraka#1519 from haraka/release_2.8.7

2.8.7 release