Improved Timeline

The app's main timeline function now removes duplicate observations. Before, if two people reported the same eruption, the timeline would list both reports as separate records. Now, if multiple reports are received, the timeline displays only one. The app, however, doesn't go very far in its guesses of what is unique; eruptions reported over a minute apart or with different descriptive modifiers (ie. near start, major, minor, etc.), will be shown as distinct timeline observations. "My Reports" and "Filter by Geyser" are unaffected. The functionality was created on the server, is active now, and automatically works on v0.04 without the need for an app upgrade.