Switch the mtr package to the upstream `newdns` git branch.

This will fix compilation on Glibc, uClibc and musl without requiring
further patches.

Note that the base version of this branch is 0.85, not 0.86 so the
lower version number is intentional.

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

Signed-off-by: Alexander Ryzhov <openwrt@ryzhov-al.ru>

Drop 521-glib-dependency-fixes.patch; merged upstream

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>

Replace the MAINTAINER lines in packages that I maintain with
PKG_MAINTAINER lines, to be consistent with the rest of the packages
tree.

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>

update from v0.82 to v0.85

set myself as maintainer

drop out of date patches:
patches/520-libresolv_fix.patch
patches/521-gtk_fix.patch

backport 25a2456 from upstream to fix glib dependency issue:
patches/521-glib-dependency-fixes.patch

Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com>