CHANGES IN VERSION 0.99.5
------------------------
 - refactored code for better efficiency
 - changed all save functions to only save files if a filepath is specified
 - added unit tests

CHANGES IN VERSION 0.99.4
------------------------
 - added genes that match the ToppGene terms to the toppData result

CHANGES IN VERSION 0.99.3
------------------------

- New vignette created to show interoperability with standard Bioconductor classes
- Added language to toppFun() function, README.md, and vignettes reminding users about using data from ToppGene

CHANGES IN VERSION 0.99.2
------------------------
- toppPlot parameter `filename` changed to `file_prefix` for clarity
- toppSave function now has a `save_dir` parameter, allowing users to specify a save directory

