hack county suffix into tiger:county tags

Ensures that the tag is matched against county names only. Also
removes the state abbreviation. State borders should be reliable
enough by now.
add addr:suburb and remove duplicate addr:country
Fix memory leak in extra attributes (user name).
Merge remote branch 'upstream/master' into delay_ind
Merge remote branch 'upstream/master'
Merge remote branch 'origin/master' into delay_ind
Merge remote branch 'origin/delay_ind' into delay_ind