thunderbird-enigmail: update to 2.1.5.

Enigmail 2.1.5

Released 2019-12-31, works with Thunderbird 68 and Postbox 7.

Notable Changes

This is a maintenance release.

Bugs fixed:

    Security issue: unsigned MIME parts displayed as signed
    Ensure that upgrading GnuPG 2.0.x to 2.2.x upgrade converts keyring format
    Make Enigmail Compatible with Protected-Headers spec, draft 2
    See list of fixed defects for more fixed issues.

Enigmail 2.1.4

Released 2019-12-12, works with Thunderbird 68 and Postbox 7.

Notable Changes

This is a maintenance release.

Bugs fixed:

    Mixed classic/窶却Ep mode on startup if the pEp Engine is not fully operational
    Key Management menu bar unreadable on dark themes
    OpenPGP column re-appears after every startup
    "Attach my public key to message" option is not restored properly
    Better activity feedback in the "Create OpenPGP Key" window
    Automatic updating GnuPG does not work
    See list of fixed defects for more fixed issues.

(wiz)