Fix deviceDetectionInterval (#2503)

rosen-vladimirov · web-flow · commit 1abcec71e41a · 2017-02-07T17:24:53.000+02:00
It looks like there's some kind of a problem when a Promise is resolved in unref-ed setInterval. Node.js suddenly thinks the process has no more work to do and does not wait for deviceDetectionInterval.
    So fix this by calling unref once the Promise is resolved. This allows consecutive executions of setInterval.
    This also fixe `&lt;cli name&gt; device` command.
diff --git a/lib/common b/lib/common
@@ -1 +1 @@
-Subproject commit f33b966c976a29222ae927b5c466d21828dbbf58
+Subproject commit 856ea876d2565d097ed4abad8b8df0dead561678
