Fixes to styling esp. votes

1. I made the CSS selectors less specific.  It is better practice
   to not use overly specific selectors (e.g. having div.poems and
   span.poems meaning different things)
2. I made the number of votes display to the right of the poems.
3. I made the number of votes larger and removed the label. Tech
   student will understand why there is a number there.
4. I changed the vote link color, size and text.
We don't need <br> tags in pre.

Because we are using pre tags for our poems, the nl2br function was
giving us double newlines, which means too many spaces in poems.