Basic desktop file
Added mime type, removed deprecated keys
Adding ginga.desktop to MANIFEST.in
Misc bug fixes

	modified:   ginga/Bindings.py
	modified:   ginga/FitsImage.py
	modified:   ginga/gtkw/plugins/Thumbs.py
	modified:   ginga/misc/plugins/ThumbsBase.py
	modified:   ginga/qtw/plugins/Thumbs.py

- Fixed bug in drag panning (aka proportional pan) where image would not
    drag smoothly
- Fixed thumbnail generation to regenerate a thumb immediately (instead of
    after a delay) and also to use the current cut levels
- Added a "Clear" button to the Thumbs plugin to clear the set of thumbnails
Bug fix for ra/dec offset addition at large magnitude DEC

	modified:   ginga/AstroImage.py
Enhancement to Catalogs function

	modified:   ginga/Control.py
	modified:   ginga/misc/plugins/CatalogsBase.py

- changing color or intensity map for star plot now redoes the plot
- mapping of colors to stars (e.g. by magnitude) is now done for only
    the subset of stars actually plotted
Misc fixes for Ginga

- Fixed some gtk warnings for deprecated API
- Enabled some additional logging
Updates to functionality and documentation

- added Sphinx documentation
- added hook to use monitor profile for 3 channel images if one exists
Updated documentation, added Tk widget version
Added preliminary support for Gtk3

Not all plugins work, but example programs do.
More fixes for Gtk 3

For reference viewer:
- All global plugins except Thumbs and WBrowser are working
- Some local plugins are working

This commit also includes a bug fix for auto cut levels where the saved
preference was not being used initially.
Fix for a renamed module in the ipython source
Misc updates to Ginga

- split Zoom plugin into common base class + widget specific subclasses
- new Timer module replaces klunky use of widget timers in some cases
- updates to Zoom and Thumbs to use new Timer module
- fixes to ipg module to work with older and newer versions of IPython
Efficiency improvements

Efforts to improve speed of entire rendering pipeline and widget
specific redrawing

* Decent improvements, Ginga can now render HD video (no sound) at 30
  FPS on older hardware (see scripts/example1_video.py).  This
  translates to a slightly speedier feel overall for many operations
  viewing regular scientific files.
* Fixed a bug that gave an error message of
  Callback.py:83 (make_callback) | Error making callback 'field-info':
  'Readout' object has no attribute 'fitsimage'

* Version bump
Fixed a logging bug for ipg (ipython notebook) module
Changed default toolkit to Qt

This is for python3 issues--cairo still needs some new development on
Gtk3/python3.
Bug fixes for Mac version of ipq

- added show() and load() methods to Ginga ipython notebook viewer
- GUIs now raise above the page when activated
- should have fixed a segfault on Mac OS X
Fixes for error messages in setup.py
Updated toolkit configuration options and color management

- added toolkit module to let user specify exact toolkit to use
- updated color management code
  - common profile conversions are faster if profiles are found
Added logger to RGBMapper