Version 1.6.1
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* Fix a bug in creation of GO graph where invalid edges were included

Version 1.1.3
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* Updating to PanViz 0.3.1

Version 0.99.0
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* Submission for Bioconductor
* Added vignette
* Added panviz method for use of functionality in R (instead of just shiny)
* Make gene ontology a subsequent download instead of bundle with package
* Check usability of current GO before building PanViz
