1.7.6

1.7.6 Changes:
* Added the ability to call pytplot.tplot_options("axis_font_size", x) to alter the axis font label size for all plots.
* Modifed 1D plot to change default color to white when the black background in enabled.  

1.7.5 Changes:
* Altered the functionality of the tplot_ascii tool to use the xarrays functions

1.7.4 Changes:
* Reverting a change from 1.7.1 back

1.7.3 Changes:
*fixing tplot math add routine to actually add

1.7.2 Changes:
* Fixing some issues with the import order of various graphic tools.  Should be easier to import where graphics are disabled.

1.7.1 Changes:
* Fixing bugs where the crosshairs give inaccurate values
* Adding a "tplot_copy" method to copy tplot variables
* Adding an option to specify which axis to plot on the spectrogram

1.7.0 Changes:
* Updating to pyqtgraph 0.11.0

1.6.9 Changes:
* Fixed a small bug where the spectrogram plot type is set without having spec bins data.

1.6.8 Changes:
* Fixing a small issue with the add_across rotuine, the attributes from the input and output should not be copied

1.6.7 Changes:
* Fixed bug introduced in previous version

1.6.5 Changes
* Changes issues with split_vec giving errors when "v" values are given to line plots.  Thanks to Nick Hatzigeorgiu for finding / solving the bug

1.6.4 Changes
* Fixed an issue where sts_to_tplot wasn't merging with previous calls

1.6.1 Changes
* Fixed some issues with the cursor movement not displaying correctly
* Fixed issues with nan data values in the spec slicing code causing the slices to not display

1.5.6 Changes

* Fixed qtwebengine import to only apply previous fix if the initial import fails
* Set version of pyqt to be <=5.12.1 for now, apparently higher versions can cause issues

1.5.5 Changes:

* Fixed import qtwebengine errors, and a few other small bugs

1.5.3 Changes:

* Bug fix for NaN values in time varying "v" values in spectrogram plots

1.5.2 Changes:

* Fixed an issue with cdf_to_tplot when DEPEND_1/2/3 were string values instead of numbers.  They are now ignored if string.

1.5.1 Changes:

* Added ability to read in specific variable names in cdf_to_tplot

1.4.8 Changes:

* The coordinates for 3+ dimensional objects should now be read in correctly.

1.4.7 Changes:

* Added two more ancillary plots, Mars 2D Map and Mars 3D Map

1.4.6 Changes:

* Occasionally logged spec plots would not be properly displayed, this is a hopefully a quick fix for that

1.4.5 Changes:

* Fixing typescript errors with bokeh

1.4.4 Changes:

* Fixing pyqtgraph's collections.abc imports

1.4.3 Changes:

* Bug fix where ylog could not be unset

1.4.1 Changes:

* Fixed small bug in the spec plots for certain file types
* Added PySPEDAS changes to the cdf_to_tplot routine

1.4.0 Changes:

* Added documentation
* Redid tplot variables as xarrays
* Added many unit tests
* Numerous bug fixes

1.3.3 Changes:

* Added power spectrum calculation routine

1.3.2 Changes:

* Updates to the spectrogram plots and CDF reader

1.3.0 Changes:

* Added interactive plots for spectrograms, documentation coming soon

1.2.11 Changes:

* Commenting out tplot_math stuff

1.2.9 Changes:

* Added a netcdf_to_tplot reader
* Changed date axis to show more relevant times

1.2.8 Changes:

* Adding merge functionality to the cdf_to_tplot routine

1.2.5 Changes:

* Adding tplot_math, with various basic functions to begin data analysis
* Crosshairs now implemented in pyqtgraph
* Timebars work in alt/map plots

1.2.4 Changes:

* Fixed for latest version of Anaconda

1.2.1 Changes:

* Fixed a bug in the pyqtgraph spec plots with time varying bins

1.2.0 Changes:

* Added ability to display an arbitrarily large number of qt plot windows, if done from ipython

1.1.13 Changes:

* Added overplot capabilities to the Qt Plotting routines

1.1.12 Changes:

* Fixed major issue with pip installer
* Added ability to use pytplot without a graphics interface, if building only html files are desired.

1.1.6 Changes:

* Fixed a spot where python warnings were changed to change back after the function was over

1.1.4 Changes:

* Added a qt option to tplot, which will allow users to just open the HTML file in a browser window

1.1.3 Changes:

* Bug fix, pyqtgraph was creating a layout every time which eventually caused a crash
* Still a known error where bokeh will no longer plot more than once

1.1.2 Changes:

* Added support for bokeh 0.12.13

1.1.0 Changes:

* Added the ability to plot directly in the Qt Window with pyqtgraph.  This may entirely replace the bokeh plotting routines at some point.

1.0.15 Changes:

* Changing tplot to use QtWebKitWidgets by default, but attempt to use QWebEngineView if not found

1.0.14 Changes:

* Fixed a bug in cdf_to_tplot

1.0.11 Changes:

* Bug fixes in the last couple of revisions

1.0.8 Changes:

* Reverting back QWebEngineView changes from 1.0.6

1.0.7 Changes:

* Should be able to export to HTML properly now.

1.0.6 Changes:

* Qt is getting rid of support for QtWebView.  QWebEngineView will replace it, but has great difficulty viewing html greater than 2GB.
* As a temporary solution, a local html file is saved, and then read into QWebEngineView.

1.0.5 Changes:

* Fixed a memory leak

1.0.2 Changes:

* Added cdf_to_tplot routine
* Made a version checker