Do not rank sole qualifiers.

If a player is the only one with >= 32 Elo games, don't show their rank. They
are the only one present in the pool! It makes no sense to say a person ranks
in the ranking pool before showing status that way.
Merge branch 'master' of github.com:antzucaro/XonStat
Use latest and greatest NVD3.
Change chart heights to 250px.
Enable userInteractiveGuideline() on acc chart.