Bigger bulk imports

before merging this:

get before/after comparisons for al, nh, ne on:

State | speed | memory usage | db items
------------ | ------------- | ------------- | -----------| 
AL (per obj bulk) | 123s | 50356kb | personvote=481887
AL (all subobj bulk) | 74s | 581440kb | personvote=481887
NE (per obj bulk) | 47s | 45804kb | billaction=32254
NE (all subobj bulk) | 20s | 170832kb | billactoin=32254