v486

Code changes:

• Add an hg.conf controlled UI change: a gear icon that brings up the context menu when clicked, and an 'x' that hides the track when clicked, that show up when the mouse is hovered on a track (#34420). Chris
• Added chromAlias to hgConvert (#35575). Brian
• Fix barChart bug, move hgc.js init call a few lines down in the hgc on hgTracks code so normal document.ready will work when the hgc page has rendered (#36092). Chris
• Tweaked the setColorWith code to fill in empty values in the wig with the invisible color. This fixes a problem when using summary levels with more values than pixels that resulted in strange coloring effects in regions adjacent to empty places in the wiggle (#36070). Brian
• Ongoing work on liftOver, most notably making saved sessions work better(#35575). Brian
• Ongoing work on genarkOrg used for the organism pull-downs in hgConvert and hgLiftOver. Brian
• Calls to cartDump from AJAX need to set db or quickLift groups get dropped. Brian

Data changes:

• Alignment tracks comparing MaveDB experiment sequences to the hg38 reference (#31812). Jonathan
• Continuous GenArk updates and liftOver file generation (#29545). Hiram