[Android] Enable tracing on XWalkCoreShell

Add an Intent receiver to XWalkCoreShell for tracing event recording.

How to use it:
1. Launch XWalkCoreShell on Android device
2. Start and stop tracing recoding by running the commands on host machine:
   # adb shell am broadcast -a org.xwalk.core.xwview.shell.GPU_PROFILER_START -e file /sdcard/Download/trace.txt
   # adb shell am broadcast -a org.xwalk.core.xwview.shell.GPU_PROFILER_STOP
3. Run 'adb pull /sdcard/Download/trace.txt' to download the trace.txt to host machine
4. Open about:tracing in Chrome browser on host machine and load the trace.txt

BUG=https://crosswalk-project.org/jira/browse/XWALK-795
Bump version to 4.32.64.0
Change default application icon on Tizen.

A default icon is used when installing by Crosswalk runtime if no icon
is given in the manifest.json. Current default application icon is
different between Android and Tizen. The Android's icon is a white "W" on
red circle; whereas the Tizen's icon is pedestrian crossing on green
background.

This PR is to let Android and Tizen share the same default icon -
white 'W' on red circle.

BUG = https://crosswalk-project.org/jira/browse/XWALK-800
Merge pull request #1433 from hmin/tracing

[Android] Enable tracing on XWalkCoreShell
Merge pull request #1441 from shaochangbin/default-icon

Change default application icon on Tizen.
[Application][Linux] Separate the concept of a running application

This object represents to the D-Bus session bus the running application
object. It is moved from the Running Applications Manager to make it
easier to manage different running applications coming and going.

For now only the AppID property and the Terminate() method are
implemented.
[Application][Linux] Follow the service name of the launcher

When an application is launched via the xwalk-launcher tool, it makes
sense the application exits when the launcher tools exits. This is done
by following the D-Bus service name of the process that called the
'Launch()' method and killing the application when this name exits
the session bus.
[Application][Linux] Only allow the launcher to call Terminate

To avoid other processes to kill each other applications, we only allow
the process that called the 'Launch()' method to call 'Terminate()'
so each launcher cannot kill another's applications.
[Runtime] Clarify ApplicationService error messages