- Move scheduling logic from ResearchLogger.java to
  UploaderService.java
- Switch to a one-shot timer.  Previously the uploader was scheduled
  on an inexact repeating schedule.  It's better to reschedule the
  next upload after the current one is finished to reduce the chances
  of multiple uploads happening at the same time.
- Avoid double-execution
    - Previously a scheduled upload might run right after an explicit
      one if they occured at the same time.  This change reduces the
      chances of this.
- Some method extraction and naming

Change-Id: I9efda11be77d334c7f61bd40a36d65f0421ebde4

Change-Id: Ic56167f952a7f4449da366e1e81610e72c966086

Upload using an intent service rather than just a thread.  More robust in case the keyboard
is closed and the upload hasn't finished yet.

multi-project commit with Id515c2b1b0d6f85be50f92a661a2d32ebaeaa143

Bug: 6188932
Change-Id: I64a9fab92ff89ee09df877db4e5f7f0ec0ffb3b6

Bug: 4460018
Change-Id: I4919d79516dcf574be2761bbaf9adcdc381b2ddc

Bug: 6341510
Change-Id: I319bb72400995d8385b0b14ef25b164dee3974da

Change-Id: Id6d9cd0ddf99c0687b6d3ea4b2f868f6cf2a0eaf

This change also gets rid of several compiler warnings.

Change-Id: I23962edaadad18a6e0395d528af17b909dcf5dad

Bug: 5156940
Change-Id: I762de1296f861abce2d0413404bca54571e0ea0a