renamed MapViewMapCanvas to TsvMapCanvas
TsvMapCanvas: contextMenu actions, saveMapImageDialog(), fixed setRenderer(), pasteStyleFromClipboard(), onClipboardChange()

TimeSeriesDatum: .createFromPath() (static), sigVisibilityChanged

introduced SensorTableModel to show sensors in QTableView
introduced TsvMimeDataUtils to extract information from QMimeData objects
renamed MapViewManager to SpatialTemporalVisualization
introduced TimeSeriesDatumView -> represents a column in SpatialTemporalVisualization
introduced TimeSeriesDateViewCollection
introduced MapViewCollection
TimeSeriesTableModel: sorting, some helper functions
MapView: sigSensorRendererChanged, MapView.sigSpatialExtentChanged

NavigationDockUI logic

minor fixes

introduced MapTools
introduced AboutDialog and PropertyDialog
separated widgets (main UI's, smaller widgets) and docks (each defined in a separate ui file)

added activateMapTool(mapToolKey)  to TimeSeriesDatumViewManager and TimeSeriesDatumView

refactoring (a lot), minor cosmetics

added QGIS_TSV_BRIDGE to be used as package instance of the QgsTSVBridge object

init qt resource with initGUI