Add libgsignon-glib as dependency

BUG=https://crosswalk-project.org/jira/browse/XWALK-2134
Merge pull request #357 from halton/sso_fix

Add libgsignon-glib as dependency
Bump version to 0.85
[Alarm] Fix failures raised from test suite.
I've downloaded the test suite from http://otcqa.sh.intel.com/qa-auto/live/Web_TCT_Xwalk/ and run them manually.
All the alarm related failures in the test suite have been fixed.

BUG=XWALK-2163
Merge pull request #358 from yejingfu/topic-alarm

[Alarm] Fix failures raised from test suite.
Bump version to 0.86
recalculate dpi on different platform

The scale factor will always be 1 if the output scale does not change.
So I default set factor to 1. If the event happens, the listener will
get the scale.
Merge pull request #356 from scuxiayiqian/recalculate-dpi

recalculate dpi on different platform
Bump version to 0.87
Upgrade after crosswalk always use tizen_app_id on tizen,
fix cannot get current app info and dbus proxy.

PR#2261 : https://github.com/crosswalk-project/crosswalk/pull/2261

After PR#2261, we always get the app_id which will equal to the
app_id storaged in pkgmgr DB, so there is no need to convert
pkg_id to app_id.

Because object path with '.' is an invalid object path, so
after PR#2261 the object path of running application on dbus
was changed so we need to change it too.

BUG=XWALK-1925
Merge pull request #361 from CooderIan/upgrade_app_id

Upgrade after crosswalk always use tizen_app_id on tizen, fix cannot get current app info and dbus proxy.
Bump version to 0.88
[Tizen][NFC] Fix argument order for NDEFRecord

TNF and NDEFRecordType were switched in NDEFRecord constructor.

BUG=XWALK-2311
Merge pull request #363 from alexshalamov/fix_for_XWALK-2311

[Tizen][NFC] Fix argument order for NDEFRecord
Bump version to 0.89
[Download] Fix and complete Download API

Refactored Filesytem and Download API to share code
related to virtual roots.
Pass TCT tests.
Fix example.

BUG=XWALK-1070
Merge pull request #352 from eurogiciel-oss/XWALK-1070

[Download] Fix and complete Download API
Bump version to 0.90
[Tizen][SSO] Fix for GetIdentity

All inputs are validated to avoid blank input from user.

BUG=XWALK-2268
Merge pull request #364 from izaman/master

[Tizen][SSO] Fix for GetIdentity