* Added splashscreen for loViewer * Moved the async logic that loads loViewer in another component * Removed 'PanelButton' component - no longer used * Changed the behaviour of the header in the loViewer: if (textDocument) hideableHeader = true * Don't use a global 'graphics' folder. Assets are now placed in the module which uses them. Fixes: https://bugs.launchpad.net/bugs/1495079.
Approved by Roman Shchekin, Alan Pope , Jenkins Bot.