Improve index_rpush_notifications_multi. Fixes #64.
Improve index_rpush_notifications_multi. Fixes #64.

chiu/rpush,joshuairl/rpush,zenjoy/rpush,zakwanhaj/rpush,kjnsn/rpush,amaierhofer/rpush,jmnsf/rpush,mandarin6b0/rpush,krakatoa/rpush,aried3r/rpush,rpush/rpush