new rows query: no need to delete limit

new rows query: no need to delete opposing keys from params

minimize copying of properties when merging data

stop event: set inFlight and queued to false

add start event. stop event just stops updates, but doesn't unbind all listChanges events, so that it can be restarted. Add start option (defaults true), so that plugin can be bound to element without updates being added automatically

Ensure just one changes listener per DB. Change triggers event on body, allowing other listeners to bind

getParams: fix error when no querystring

add latestRows updateType, for updating just the most recent row in a list. Example use: a list of daily totals, where only today's count will be updated

Allow url and descending opts to be specified as data- attributes. Iterate over each element when setting up plugin so that multiple containers can be specified

stop event: abort in-flight xhr request

Example app: create docs via update handler, so that newRows updates aren't thrown out of whack by client-side clock inconsistencies

set queued = false in 'stop' event

if update is triggered while inFlight, trigger update again after inFlight request completes

only modify params for newRows query if we have a highkeyElem

Preload option is unnecessary - if url is specified in options, we know we should immediately query for content