qemu: reintroduce usb tablet

and fix (yet another) nil error in view
qemu: usb tablet: @ DEFAULT_CONTROLLERS.first
qemu -device: favor 'driver' over 'type'
qemu: pci passthrough: fix typo in 'drive(r)'
qemu: stub jQueryUI tabs
qemu: jQueryUI: fix tabs header
qemu: jQueryUI: add 'Status' tab
qemu: jQueryUI: CSS fixes...
jQueryUI/CSS minor rearrangements
import jquery-ui 1.10.3

* Download Builder http://jqueryui.com/download/
* Widgets: Tabs
* Themes: Smoothness renamed 'smoothness-custom'
Merge branch 'jquery-upstream' into v12n+jqueryui
jqueryui: remove inessential files
qemu and core: use 'embedded' jQuery
core + qemu: ui: DRY highlight color
qemu/tabs: further style fixes
qemu/jquery/tabs: other css fixes...
qemu/_form_create_edit: reorder
qemu/_form_create_edit: separate general vs disks
jquery tablist same background of <td>, incl. qemu
qemu/jquery-ui: css fix: class instead of id