JBrowseR 0.8.0

Added the track_data_frame() track type. This makes it possible to create JB2 tracks directly from R data frames without any files.
Updated all views to now send Shiny messages to input$selectedFeature recorded what feature was clicked on. Check out the new example app bookmark_app.R for a demo!

JBrowseR 0.7.1

Updated URLS in Description to reflect new home in GMOD Github organization.
Upgraded to @jbrowse/react-linear-genome-view version 1.0.4 (fixes issues with Safari and iOS compatibility).