Fixed aspect ratio bug with zoom and added keyboard functionality to switch between plots.
Added plot number to GUI. Unstable development branch.
Switched RR Map implementation to a ScatterPlot.
Release 0.2
Merge https://github.com/mik854e/pyxda

Conflicts:
	pyxda/rawviewer/controlpanel.py
	pyxda/rawviewer/display.py
	pyxda/rawviewer/imagecontainer.py
	pyxda/rawviewer/loadimages.py
	pyxda/rawviewer/pyxda.py
	pyxda/rawviewer/userinterface.py
Merged with Michael's branch