shiptv 0.4.1 (2021-05-13)

• ensure tree rendered even if genomeMetadata object is empty in phylocanvas.html
• add --version option to print shiptv version and exit
• add epilog to help with version info
• add example usage to help
• change --metadata short opt to -m from -M
• change --output-metadata-table short opt from -m to -M
• update lodash JS library to version 4.17.15