Upload button only appears on My Uploads if images ready to be uploaded.

Also made taps on grayed out Details page upload button (or blank parts of nav bar) cause keyboard to focus on title or description boxes (depending on which one is blank) as a hint that text needs to be entered.

Change-Id: I6dfe8289af12cf00fd408c5e824b4698187d266c
Merge "Upload button only appears on My Uploads if images ready to be uploaded."