Cleaned up channel tab UI.  Removed extraneous white space, fixed hotspot for the delete button, italicized tag filter, and removed extraneous grey border on the top edge of grapher canvas
Better usage of space in channel tabs in the Timeline tab (no delete button on the channels allows more space for channel name and tag filter description)
Fixed typo in updateWorkerTasks.delete.scheduledByApi named query which broke.  Added calls to take ApiKey as a parameter instead of (guestId,connector) for several calls (checkIfSyncInProgress, checkForErrors, getLastSync, getLatestData) and modified UpdateWorker to call the new ApiKey versions.
Modified BodymediaUpdater to do an expiration check on the current set of keys and try to exchange them for new ones if they're expired
Upgraded grapher to version that won't have rendering bugs in firefox
Timeline channels have a white background again, making manual channel dragging/sorting less visually jarring