Removed old, unused Makefile
Fixed name of script which caused an import error in default install

	deleted:    Makefile
	modified:   README.txt
	modified:   ginga/doc/INSTALL.txt
	renamed:    examples/example1_gtk.py -> scripts/example1_gtk.py
	renamed:    examples/example1_qt.py -> scripts/example1_qt.py
	renamed:    examples/example2_gtk.py -> scripts/example2_gtk.py
	renamed:    examples/example2_qt.py -> scripts/example2_qt.py
	renamed:    ginga.py -> scripts/ginga
	modified:   setup.py

- ginga.py becomes scripts/ginga
  - should fix import error with ginga package prefix
- removed useless old Makefile
- slight updates of README and INSTALL instructions
Merge remote-tracking branch 'origin/master'
Fixed some bugs relating to the generation of thumbnails

	modified:   README.txt
	modified:   ginga/Control.py
	modified:   ginga/FitsImage.py
	modified:   ginga/doc/INSTALL-Linux.txt
	modified:   ginga/doc/INSTALL.txt
	modified:   ginga/gtkw/FitsImageGtk.py
	modified:   ginga/gtkw/plugins/Thumbs.py
	modified:   ginga/misc/Settings.py
	modified:   ginga/qtw/FitsImageQt.py
	modified:   ginga/qtw/plugins/Thumbs.py

- fixed a bug where not all thumbnails would be generated if multiple
    files were dropped on the window
- disabled automatic strolling to the bottom of the thumbs pane when new
    thumbs are added
- suppressed an error where a divide-by-zero error is generated on a blank
    image
- updated documentation slightly to reflect new distutils-based installation
Fixed setup.py script to include license file

	modified:   setup.py
More fixes to setup.py

	modified:   setup.py

- to allow uploading of source package to pypi
Enabled Python 3 compatibility, and changed tabs to spaces to prevent errors.
Fix importing of Queue module
Bug fixes for running under Python 3.

	modified:   ginga/PythonImage.py
	modified:   ginga/gtkw/plugins/Thumbs.py
	modified:   ginga/misc/Bunch.py
	modified:   ginga/qtw/plugins/Thumbs.py
	modified:   scripts/example2_qt.py
Fixed unicode issue in distutils setup.py

	modified:   setup.py

- Now works under python 2 or 3
Misc fixes to run under Python 3

	modified:   ginga/AutoCuts.py
	modified:   ginga/Catalog.py
	modified:   ginga/Control.py
	modified:   ginga/PythonImage.py
	modified:   ginga/RGBMap.py
	modified:   ginga/cmap.py
	modified:   ginga/gtkw/FitsImageGtk.py
	modified:   ginga/gtkw/plugins/Info.py
	modified:   ginga/gtkw/plugins/PixTable.py
	modified:   ginga/gtkw/plugins/Thumbs.py
	modified:   ginga/imap.py
	modified:   ginga/iqcalc.py
	modified:   ginga/misc/Datasrc.py
	modified:   ginga/misc/Settings.py
	modified:   ginga/qtw/FitsImageQt.py
	modified:   ginga/qtw/QtHelp.py
	modified:   ginga/qtw/plugins/Catalogs.py
	modified:   ginga/qtw/plugins/Contents.py
	modified:   ginga/qtw/plugins/FBrowser.py
	modified:   ginga/qtw/plugins/Info.py
	modified:   ginga/qtw/plugins/PixTable.py
	modified:   ginga/qtw/plugins/Thumbs.py

- fixes to various plugins and modules to run correctly under python 3
Bug fixes for Thumbs and Preferences plugins

	modified:   ginga/gtkw/plugins/Preferences.py
	modified:   ginga/gtkw/plugins/Thumbs.py
	modified:   ginga/qtw/plugins/Preferences.py
	modified:   ginga/qtw/plugins/Thumbs.py

- added "Auto scroll" checkbox to the bottom of the Thumbs plugin gui
  - if checked thumbs window will scroll when new images arrive
  - this can be set by a preference in plugin_Thumbs: "autoScroll: False"
  - default is True
- fixed an issue where the thumbnail was not auto cut
- fixed a bug in the Preferences gui where the auto cuts method widget was
    not updated correctly
Modified to use astropy module if it is installed

	modified:   ginga/AstroImage.py
	modified:   ginga/gtkw/plugins/FBrowser.py
	modified:   ginga/gtkw/plugins/MultiDim.py
	modified:   ginga/qtw/plugins/FBrowser.py
	modified:   ginga/qtw/plugins/MultiDim.py
	modified:   ginga/wcs.py
	modified:   scripts/example1_gtk.py
	modified:   scripts/example1_qt.py
	modified:   scripts/example2_gtk.py
	modified:   scripts/example2_qt.py

- otherwise falls back to individual pyfits and pywcs modules
Bug fix to disable Pick plugin if scipy is not installed

	modified:   ginga/gtkw/plugins/Pick.py
	modified:   ginga/iqcalc.py
	modified:   ginga/qtw/plugins/Pick.py

- Ginga will still start ok if scipy is not installed
  - Pick plugin will be missing
First cut at handling different coordinate systems

	modified:   ginga/AstroImage.py
	modified:   ginga/BaseImage.py
	modified:   ginga/Control.py
	modified:   ginga/gtkw/GtkHelp.py
	modified:   ginga/gtkw/plugins/Info.py
	modified:   ginga/gtkw/plugins/Preferences.py
	modified:   ginga/qtw/QtHelp.py
	modified:   ginga/qtw/plugins/Info.py
	modified:   ginga/qtw/plugins/Preferences.py
	modified:   ginga/wcs.py

- Heretofore Ginga just displayed world coordinate info based on FK5
- If AstroPy is installed, Ginga will use it to support different WCS
   coordinate reporting systems: icrs, fk5, fk4 and galactic.
- Preference is currently handled on a per-channel basis (this may change)
Enhancements to Cuts plugin, partial commit

	modified:   ginga/FitsImageCanvas.py
	modified:   ginga/gtkw/plugins/Cuts.py
Bug fix for bad coord transformations

	modified:   ginga/wcs.py

- ginga now correctly follows the transform_to() protocol defined for
    coordinates if astropy is installed
- it makes a reasonable guess as to the initial coordinate system based
    on the FITS header
Factored out common code of plugins to a base class

	modified:   ginga/gtkw/plugins/Cuts.py
	new file:   ginga/misc/plugins/CutsBase.py
	modified:   ginga/qtw/plugins/Cuts.py
Merge branch 'advcuts'
Enhancements to Ginga FITS viewer

- Reorganized cairo drawing into its own module
  - will like refactor FitsImageGtk class to subclass FitsImageCairo
  - FitsImageCairo class allows rendering onto any cairo surface (PDFSurface,
     PSSurface, etc)
  - sample program in scripts/fits2pdf.py

- Added a colors module to make colors precise across toolkits
  - initially based on X11 rgb.txt defined colors

- Small enhancements to the Cuts plugin
  - typing 'v' while hovering the cursor will give you a vertical cut through
      the image
  - similarly, typing 'h' will generate a horizontal cut
  - removed "drawing" types of vertical/horizontal cuts until it has been
      thought through a little more