(PlotWidget.plot() can not resolved, maybe useless)

-Links in "Organization of Plotting Classes" added/resolved
   - GraphicsLayoutItem changed to GraphicsLayout
      (svg/png picture also)

  graphicswindow.rst now useless (no link)

  Yes it "makes" ....

- Renamed GraphicsView signals to avoid collision with ViewBox signals that
  are wrapped in PlotWidget: sigRangeChanged => sigDeviceRangeChanged and
  sigTransformChanged => sigDeviceTransformChanged.
- All signal disconnections that catch TypeError now also catch RuntimeError
  for pyside compatibility.

All argument lists with `**Arguments:**`

Adds ViewBox.setLimits method

Conflicts:
	examples/SimplePlot.py

 - isosurface works for arrays with shapes > 255
 - Fixed ImageItem exception building histogram when image has only one value
 - Fixed MeshData exception caused when vertexes have no matching faces
 - Fixed GLViewWidget exception handler

No rendering of "Line style keyword arguments:"  list because of missing blank line and  mysterious unexpected identation error

ArrowItem: setStyle now combines new options with previously-set options.
AxisItem: fix minor exceptions

Renamed args for clarity, improved documentation
Fixed interaction bugs
 - zooming works correctly when view is against limit
 - no more phantom target range; target is reset during mouse interaction.

Import and py3 bugfixes for MultiPlotWidget
Add setMinimumPlotHeight method.

Merge remote-tracking branch 'termim/develop' into multiplotwidget-fix

Minor setup corrections

- Added FillBetweenItem.setCurves()
- Added FillBetweenItem example

- removes the tools/debian directory (re-added in debian branch)
- updates to setup scripts