Both pointer and last are fields that were removed when we changed the
protocol to use events like a year ago.
This conveniently allows us to stop exporting get_updates_params to
other modules.
(imported from commit 13651ee240ce6e1bafb241b185e5ef653c348cdf)
Previously, we waited until we'd fully loaded the home view to start
calling get_events, which:
(A) didn't make sense non-message related events
(B) resulted in our throwing "get_updates not started" errors when
users sent a message before the home view was fully loaded.
This commit only fixes problem (B); to fix problem (A) we will need to
change the event capture code to only capture some events.
(imported from commit 2aacd6bdfd1e7d7707e3a724f1fde7da4a556538)
Note that this makes the event fire after the home view has messages
loaded all the way to current; previously it only waited for the first
batch of messages to load.
(imported from commit a5c408ea0136c761f4cc77e8be4977b13acc6d77)