DeviceBlackboard: explicitly cast enums to unsigned
AbortTask: add missing <vector> include
Makefile: remove duplicate CXX=clang assignment

Was in both llvm.mk and compile.mk.
po: update Japanese translation
po: update German translation
po: update Swedish translation
Makefile: move the "TESTING" flag to build/options.mk

Resolves a dependency problem: the variable was defined in android.mk,
but was used before that already in targets.mk.
debian/rules: add variable TARGET_OUTPUT_DIR

Allow overriding.
NEWS.txt: mention the new Kobo port
Form/List: fix pixel panning / e-paper check

This was the wrong way around.  D'oh!
release v6.7
NEWS: prepare for 6.7.1
NEWS.txt: remove remains of unreleased version 6.6.6

Development of 6.6.6 was cancelled due to the 6.7 release.
build: Fixed duplicate imagemagick call

This created issues in builds with high -j settings on some machines and
the convert-to-bmp-half function is expecting _1.bmp extensions which
created wrong output when fed with _2.bmp.
po: update Swedish translation
po: add Lithuanian translation
LanguageGlue: add support for Lithuanian
Kobo/WifiDialog: Clear passphrase before calling TextEntryDialog()

Fixes trac issue #3053.
Merge branch 'v6.7.x' of git://git.xcsoar.org/xcsoar/apf/xcsoar into v6.7.x
Replay/IGCReplay: clear IGCExtensions in IGCReplay constructor

Fixes trac issue #3107.