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ztv Change Log
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0.2.1-6   2015-09-23
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- Made default datadir and auto-load pattern be the current working directory (rather than just user's home dir)
- dev2:  made temporary fix to ztv.set_clim to force image redisplay even when cim unchanged.  Problem was that new images weren't being displayed automatically for a fixed clim.  (Need to come back and re-evaluate how images are loaded and look for remaining inefficiencies, e.g. code called more than once during a single image load)
- dev3:  speed improvements in areas that will help speed of auto-loading new images; primarily reducing number of extraneous recalculations of aperture photometry
- dev4:  speed improvements in areas that will help speed of auto-loading new images; primarily reducing number of times that redraw_*_image routines are called
- dev5:  reduce number of times that image normalization is recalculated by caching; modified some syntaxes for easier future upkeep.  

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0.2.1-5   2015-09-22
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- added a delay to WatchMasterPIDThread before beginning watch loop

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0.2.1-3   2015-09-08
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- updated README.md for anaconda install example

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0.2.1-2   2015-09-08
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- added instructions for install on a fresh OS X Yosemite 10.10 system using Homebrew Python distribution to README.md
- added instructions for install on a fresh OS X Yosemite 10.10 system using Anaconda Python distribution to README.md
- in ztv_api.py: for launching ztv in a separate python process, made `pythonw` the default python executable, reverting to `python` only if `pythonw` is not available.  This gets around some of the Frameworks/wxPython issues that crop up when running in a virtual environment, particularly, e.g., anaconda python distro.

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0.2.1-1
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- fixed __init__.py so that "import ztv ; print ztv.__version__" works

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v0.2.1, 0.2.0
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- now requiring wxPython version >= 3.0.0  (This is the reason for the larger bump in version number)
- fixed a number of GUI bugs that wxPython upgrade introduced. (More likely than bugs with wxPython 3 is that the wxPython 2 had bugs that had been worked-around and/or other issues.)
- added instructions for install on a fresh OS X Yosemite 10.10 system using system's Python distribution to README.md
- (No difference between v0.2.0 and v0.2.1 in git repository, except that had messed up uploading to pypi & couldn't rewrite the same filename, so had to increment version number to fix formatting of README.md on pypi webpage.  Issue was pypandoc install was broken first time I built.)

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v0.1.3dev
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2015-07-29:
- implemented that z-key on primary image activates a plot in z-dim of image stack in plot_panel 
- FITS header is updated in fits header window when a new file is loaded (or header for sky file or header for flat file)
- misc bug fixes

pre-2015-07-29:
- updated version number b/c realized had already released 0.1.2
- fixed bug in plot_panel where doing slice beyond image size caused warnings.
- implemented click-and-drag to aperture radii on profile plot in phot_panel

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v0.1.2, 2015-04-22
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- updated version number b/c had already released 0.1.1dev 

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v0.1.0post2, 2015-04-22
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- added default_data_dir, and default_autoload-pattern options
- changed default color of lines to be more visible against gist-heat map
- added auto-stats-box option for scaling on load of new image
- Fix bug in reading fits files that was a problem in autoloading when fits file hadn't yet been written fully to disk.

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v0.1.0post1, 2015-04-22
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- Fixed several bugs for use on linux/ubuntu

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v0.1.0, 2015-04-20
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- First public release to github and pypi

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v0.0.0, 2014-08-05
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- Initial project creation, combining bunch of hroe's code from other places
