[more] in edu places not excluding no data cases

[zang0]

http://opendatanetwork-staging.herokuapp.com/region/1600000US5356695-1600000US4159000/Puyallup_WA-Portland_OR/education_places/head_start_center?

click on head start center drop down
note: 5 categories

now, click on more in lower right of map

note: > 5 categories, the extra ones don't have data

need to apply same logic that we do for the drop downs.

[zang0]

elevating this due to crawler ramifications. clicks that forward to the wrong categories dilutes our seo.