[SysApps][Tizen] Fixed the incorrect event type and rename the event type

1. remove 'on' before the event type
     such as: onattach -> attach
2. rename event type to keep consistent with spec
     such as: rename 'attach' -> 'storageattach'

spec: http://device-capabilities.sysapps.org/
[Android] Exclude the gdbserver from release mode of packaging tool.

The gdbserver is used for debugging XWalk, which should not be included
in the release binary of packaging tool. Because it would introduce additional size
of the binary.

So exclude gdbserver binary from release version and leave it for debug version
the same as that for xwalk_core_library.
[Runtime Model] Refactor the Application Storage system.

Rename ApplicationStore to ApplicationStorage, DBStoreSqliteImpl to
ApplicationStorageImpl.

Add the system events setter/getter method in ApplicationData, so that
all application related information can be cached in it.
Implements runtime flags for Xwalk.

A new class is added to handle the runtime flags where each feature is
declared as "stable" or "experimental".

This class contains the getters XWalkRuntimeFeatures::isMyFeatureEnabled()
used to know if a feature is on or off from the C++ code.

Note that this class also handles whether a feature has been overriden
by the command line (--enable/--disable-myfeature) by querying the
CommandLine object.
Merge pull request #1285 from darktears/runtime-features2

Implements runtime flags for Xwalk.
Add a generic --enable-xwalk-experimental-features to turn on
all the experimental features.

This will allow our brave users to test the greatest and the latest.
Ideally we need to find a mechanism to trigger this on our Canary
builds (just like Chromium) so the testing can happen early in the
release process.
Merge pull request #1304 from darktears/enable-experimental

Add a generic --enable-xwalk-experimental-features to turn on all the experimental features.
[Tizen] Fix screen rotates regardless "auto rotate" setting

The screen orientation should be forced to portrait-primary when "auto
rotate" is disabled in settings.

BUG=https://crosswalk-project.org/jira/browse/XWALK-625
Mark the JS Dialog API experimental.

We're not very sure if this API should be that way.
If people have interesst using it they can pass the
flag to switch it on.
Merge pull request #1305 from darktears/dialog-off

Mark the JS Dialog API experimental.
Bump version to 3.32.52.0
Merge pull request #1289 from junmin-zhu/gdb

[Android] Exclude the gdbserver from release mode of packaging tool.
[Android] Check webview legacy api for external protocol handling first

Crosswalk provides two ways for embedders to extend protocol handling.
1. The same api as legacy webview api in XWalkContentsClient,
   shouldOverrideUrlLoading().
2. Extends XWalkNavigationHandler.

By default, xwalk doesn't do anything in shouldOverrideUrlLoading, but
handles action uri in XWalkNavigationHandler.
To avoid the case that some embedder override shouldOverrideUrlLoading
in the way conflicts with what xwalk already did in XWalkNavigationHandler,
calling shouldOverrideUrlLoading prior to invoke XWalkNavigationHandler
so that embedders won't get confused.

BUG=https://crosswalk-project.org/jira/browse/XWALK-654
[Android] Add arch option for packaging tool in embedded mode.

Accept the arch option from developer for embedded mode. if the arch
option is unspecified, all available platform apks will be generated.

Usage: python make_apk.py --arch=x86 ...

BUG=https://crosswalk-project.org/jira/browse/XWALK-598
[Android] Correct the error message for embedded sample app

Change to more general term:
"Crosswalk failed to initialize."
The detail information about the failure will be shown in
the pop up dialog.

BUG=https://crosswalk-project.org/jira/browse/XWALK-649
[Android] Add the check of application launch path in packaging tool.

   Since there is no prompt when there is no application launch path
in the manifest.json file, to improve the user experience of crosswalk,
in the packaging tool, add the check of application launch path in packaging
tool. The related test case is added.

BUG=https://crosswalk-project.org/jira/browse/XWALK-645
Merge pull request #1253 from junmin-zhu/arch

[Android] Add arch option for packaging tool in embedded mode.
Merge pull request #1287 from qjia7/master

[SysApps][Tizen] Fixed the incorrect event type and rename the event type
Merge pull request #1303 from zliang7/dev

[Tizen] Fix screen rotates regardless "auto rotate" setting
[Android] Update the user interface of http authentication dialog.

  Update the text margin and the string of http authentication dialog.

BUG=https://crosswalk-project.org/jira/browse/XWALK-646