move My Submissions to primary nav (bug 860373)

Note that only comment #13 (https://bugzilla.mozilla.org/show_bug.cgi?id=860373#c13) is relevant. The discussion around this minor issue got a bit out of hand and was reined back in.
why are you removing "My Submission" from this drop-down menu?

![](http://cl.ly/image/0d0m3j2v131g/Screen%20Shot%202014-07-17%20at%204.09.29%20PM.png)

this is actually very useful