Previously we always load android.img from server when building snap.
Now, build with <ANBOX>/android-images/android.img if there is one.

readme: tip to build with GCC 5.x

Add simple script to collect various relevant log files for a bug report

debian: update changelog

Update android image

Drop upstart/systemctl session jobs

We don't use them anymore as we now completely rely on `anbox launch` to
start the session manager. This lets us remove another part which can't
be shipped inside the snap package.

 * Don't crash inside AlarmManager when PendingIntent is not set

Add support for rootfs mounts via squashfuse

Remove duplicated suffix on version string

In CMakeLists.txt, it already defines:

if (ANBOX_VERSION_SUFFIX)
    set(ANBOX_VERSION "${ANBOX_VERSION}-${ANBOX_VERSION_SUFFIX}")
endif()

So there's no need to add suffix again in code
Signed-off-by: NShengjing Zhu <i@zhsj.me>

Fix compilation errors on armhf

Add a few more lxc tools as part of the snap

Add slot definitions for our dbus service

Allow the use of the system dbus service

Create correct application manager based on if we're single window or not

Update to newer Android image

Cleanup unexpected Makefile

Add test case for our restricted app manager

Only use multi window manager when platform supports

Changes:

 * Android system log is now dumped into $ANDROID_DATA/system.log so
   it can be accessed without adb and logcat
 * Fix SEGV in art on newer kernels with CVE-2017-1000364 fixed

Fixes #337

Fix build dir after cmake build

Signed-off-by: NShengjing Zhu <zsj950618@gmail.com>

Signed-off-by: NShengjing Zhu <zsj950618@gmail.com>