Added buttons that scroll through images.
Removed hard wire. Edited the UI some.
Added function file for summing. Arrow key functionality still not added.
Merge https://github.com/mik854e/pyxda

Merged with Mike. Added new user interface and directory trait.

Conflicts:
	pyxda/rawviewer/display.py
	pyxda/rawviewer/handler.py
	pyxda/rawviewer/loadimages.py
	pyxda/rawviewer/pyxda.py
	pyxda/rawviewer/ui_pyxda.py
Updated to Michael's Code

Conflicts:
	pyxda/rawviewer/ui_pyxda.py
Worked on packaging. Can type 'pyxda' for info and 'pyxda--rawviewer' to start rawviewer.
last state before update
Merged with recent code.

Conflicts:
	pyxda/rawviewer/controlpanel.py
	pyxda/rawviewer/display.py
	pyxda/rawviewer/loadimages.py
	pyxda/rawviewer/pyxda.py
	pyxda/rawviewer/ui_pyxda.py
	pyxda/rawviewer/uipyxda.py
	pyxda/rawviewer/userinterface.py
	setup.py
Changed some mistakes I made with the merge.
Cleaned Imports
Fixed aspect ratio bug with zoom and added keyboard functionality to switch between plots.
Worked on index display.

It is not working like I want though. The input box is filling up extra
space.
Quick changes to last commit.
Added plot number to GUI. Unstable development branch.
Switched RR Map implementation to a ScatterPlot.
added histogram
Edited histogram class. Still needs work.
Completed histogram class.
Wrote functions to calculate percentage of pixels above or below value.
Added Test Folder 'Aspect Ratio'

Contains modified betterselectingzoom and a test line plot.