changelog: add note about TLS session tickets

Change-Id: I154a56ff85adb8d43ddb730d91d2c59f129f7a26
Reviewed-by: Richard J. Moore <rich@kde.org>
iOS: default_post: let xcodebuild_distclean depend on xcodebuild_clean

Otherwise, make would upon distclean first remove the xcode
project, then try to do xcodebuild distclean. xcodebuild would
then complain about a missing project.

Change-Id: I0a9a6af6d86d1a95e37f4bbafa38c63d892bf1cc
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>