mobile pagination and post date

I'm mostly using a phone to view the forums atm, here's a couple things i think would help

@JeffreyWay please consider:

1. put page links at the top and bottom. Its a pain clicking thru to a multi page thread and scolling all the way down to page on

2. put the post date in the header. Its important context and the user avatar makes the block pretty tall so theres enough space to squeeze it in

Thanks for listening

l.