[Android] Fix the regression issue of http authentication on chromium 34.

Based on chromium 34, the http authentication cannot work, while
it works on chromium 32, this is because Chromium 34 starts to
support the out-of-process iframe, RenderViewHost is replaced by
RenderFrameHost, while in XwalkLoginDelegate, webcontents is still
gotten via the RenderViewHost, which causes the corresponding UI
thread for http authentication not to work. This fix resolves this
issue by replacing RenderView with RenderFrame for http authentication.

BUG=https://crosswalk-project.org/jira/browse/XWALK-1088
Merge pull request #1668 from shaochangbin/dbus-session-issue

[Tizen][Runtime] Fix session bus issue under service mode.
Merge pull request #1666 from ShDavidliu/update_auth

[Android] Fix the regression issue of http authentication on chromium 34...
Merge pull request #1665 from shaochangbin/tags-configxml

[Runtime] Fix install issue of widget applications without 'version' attributes.
[Runtime] Fix launch issue for widget applications that don't have
'content' element in config.xml.

Per Widget spec, the occurrences of 'content' element can be zero or one.
If there is no 'content' in config.xml, we should still be able to launch
widget application by the default 'index.html' path

BUG=XWALK-1109