Implement "xwalkctl -d PORT_NUMBER" to dynamically enable remote debugging mode

With this patch, to enable remote debugging, we don't need to modify the
configure file "/usr/lib/systemd/user/xwalk.service" and restart the xwalk
service anymore.

Usage:
xwalkctl -d 9222 #enabled remote debugging at port '9222'
xwalkctl -d 0 #disable remote debugging

BUG=https://crosswalk-project.org/jira/browse/XWALK-2058
Merge pull request #2338 from iKevinHan/xwalk-2058-1

[Tizen] Implement "xwalkctl -d PORT_NUMBER" to dynamically enable remote debugging mode
DEPS.xwalk: Remove duplicate lines.

Remove a few duplicate comments added by 60aaa8bec ("Do not use
scripting inside gclient").
Merge pull request #2347 from rakuco/remove-duplicate-lines

DEPS.xwalk: Remove duplicate lines.
Roll M37.0.2062.94 which is the first stable of M37.
Merge pull request #2349 from darktears/master

Roll M37.0.2062.94 which is the first stable of M37.
Bump version to 9.37.196.0
Merge branch 'master' of github.com-crosswalk:crosswalk-project/crosswalk
[Tizen] Enable Alsa support for IVI and Common

BUG=XWALK-2262