Some tweaks to the notifications overlay
1. Instead of resorting, just reversing notifications array
2. Smaller font for notification footer, per Vibha
3. Making sure loading spinner is actually visible when active
4. Hiding primary link - this isn't supposed to be visible, but
   only used for constructing the psuedo-link for the entire
   notification div (to be implemented later)

Change-Id: I3710a9184ff43e56156d09621c1a93377cee64fd
Merge "Some tweaks to the notifications overlay 1. Instead of resorting, just reversing notifications array 2. Smaller font for notification footer, per Vibha 3. Making sure loading spinner is actually visible when active 4. Hiding primary link - this isn't supposed to be visible, but    only used for constructing the psuedo-link for the entire    notification div (to be implemented later)"