[Tizen] Remove scoped_ptr for TizenSystemIndicatorWidget

Remove scoped_ptr for TizenSystemIndicatorWidget since
it has the same lifetime with its owner WidgetContainerView.
[Tizen] Fix a crash in NativeAppWindowTizen::~NativeAppWindowTizen()

Observer must be removed in OnWindowDestroying and not in the destructor,
as the aura::Window is already destroyed when the NativeAppWindowTizen
destructor runs.

BUG=https://crosswalk-project.org/jira/browse/XWALK-782
[Android] Fix crash issue of loading app from manifest with app scheme.

The ManifestReader in Java does not understand the app scheme, so the
url of manifest.json should be convert to android_asset url before
loading the manifest content.

Bug=https://crosswalk-project.org/jira/browse/XWALK-868
[application] Normalize Application termination API

We should use the word "Terminate" in every method name concerning an application's termination.
Merge pull request #1506 from nagineni/XWALK-782

[Tizen] Remove scoped_ptr for TizenSystemIndicatorWidget
Merge pull request #1511 from nagineni/XWALK-782-2

[Tizen] Fix a crash in NativeAppWindowTizen::~NativeAppWindowTizen()
Merge pull request #1515 from pozdnyakov/Normalize_App_Term_API

[application] Normalize Application termination API
Fix the coding style in the orientation ext JavaScript

Fix valid cases pointed out by JSLint and avoid using
deprecated JavaScript methods.
Merge pull request #1516 from kenchris/style

Fix the coding style in the orientation ext JavaScript
[Application][D-Bus] Fix crash when shutting down

DBusManager owns the Bus connection and was being destroyed before the
service provider that uses it.

TEST=Loaded xwalk --run-as-service and xwalkctl <APP_ID> then closed the
window. The first process should not crash but exit cleanly.
Merge pull request #1517 from cmarcelo/dbus-shutdown-crash

[Application][D-Bus] Fix crash when shutting down
Bump version to 4.32.75.0
[Android] Fix ScreenOrientation's package missing issue when integration with Cordova.

Because the ScreenOrientation API is in the ".../api/screen_orientation"
folder, but it's packaged as ".../api/screenorientation/...".

Move the ScreenOrientation implementation from "screen_orientation" folder
to "screenorientation" folder.
Merge pull request #1514 from junmin-zhu/screen

[Android] Fix ScreenOrientation's package missing issue when integration with Cordova.
Merge pull request #1512 from gaochun/app-scheme-bug

[Android] Fix crash issue of loading app from manifest with app scheme.
[Android] Minify and obfuscate the javascript and css.

This patch is to minify and obfuscate the javascript and css
files before doing packaging.
Integrate the yui compressor with the packaging tool.
Yui compressor was gotten from http://yui.github.io/yuicompressor/
The license is BSD.