Use r.js programmatically
Fix error handling for requirejs
Base for using grid and tabs for lateral panels
Separate tabs drag and drop context
Disable menu for panels tabs
Limit options of panels tabs: layouts, new tab, ..
Add an optional limit on number of tabs per section
Add base for new grid ui
Add optional default width for grid section
Add operations visible on lateral bar
Improve menubar design
Fix body color for default theme
Disable drag and drop for panels
Improve menubar for dark theme
Use beautiful cursors for drag and drop and grid resize
Fix cursor on click and draggable tab
Improve files panel
Fix events on dom of panel views
Update hr.js, fix files panel and fix some memory leak with listenTo
Fix destroy of tab menu on close