[Bug-gnuzilla] IceCat 45.5.1 release

[Rubén Rodríguez]

GNUzilla is the GNU version of the Mozilla suite, and GNU IceCat is the
GNU version of the Firefox browser. Its main advantage is an ethical
one: it is entirely free software. While the Firefox source code from
the Mozilla project is free software, they distribute and recommend
non-free software as plug-ins and addons. Also their trademark license
restricts distribution in several ways incompatible with freedom 0.
https://www.gnu.org/software/gnuzilla/

The user manual pages are at http://libreplanet.org/wiki/Group:IceCat/
You can contribute by joining the wiki and editing the manuals.

Source tarballs, binaries for generic GNU/Linux systems and translations
are available at http://ftp.gnu.org/gnu/gnuzilla/45.5.1/
GPG key ID:D7E04784 GNU IceCat releases
Fingerprint: A573 69A8 BABC 2542 B5A0  368C 3C76 EED7 D7E0 4784
https://savannah.gnu.org/project/memberlist-gpgkeys.php?group=gnuzilla

This release introduces few changes aside of the major upgrade from v38
to v45, which required changes to the branding, aboutIcecat pages,
spyblock, internationalization build system and search plugins.

== Changes since v38.8.0ESR ==
 * Updated to v45.5.1ESR
 * https-everywhere updated to 5.2.7
 * Disabled antifeatures: EME, telemetry, flash, search suggestions,
Geolocation, GMP, Pocket, and extension signatures. WebRTC tunned to
prevent ip leaks over TOR.