Added animation for music playlist, started handling tap event on the first column -> TODO: push source device queue info view
implemented sliding text (CSS), see example in music playlist. Implemented pushing a panel on the left which will host the selected source device queue (yet tbd)
restructured PanelsGrid.js to have the main container layout as hbox
Merge pull request #8 from lamuertepeluda/master

UI optimisations and adds queues colums