Up to now, text control could but be focusable, and this focus was used
to scroll text, should it be too long for full display.

From a user viewpoint, this behavior is often counterintuitive :
 - Most of the time, the control is designed to fit the text anyway, and
   scrolling is not expected.
 - On the other hand, an underlying control may be used to move the window
   (for instance, the title bar), and a text control is expected not to
   interact in this endeavor. Same goes for popupmenu, that is expected
   to work if one happens to right-click on a text control.

This patch adds a 'focus' attribute to the text control, and leave it to the
skins developper to decide which behavior is most desirable on a per-control
basis. focus still defaults to true to maintain skins current behavior.

it should read 'TL/TL and BR/BL' instead of 'TL/TL and TL/BL'

These features include

for vlc11
 - new variables : vlc.canRecord and vlc.isRecording
 - new functions : vlc.toggleRecord() and vlc.nextFrame()
 - a new 'loop' parameter for animated bitmaps
 - a special id="fullscreenController" for Window, intended to be
   used as a skinnable fullscreen controller

for vlc12
 - a new 'art' parameter for image control
 - a new 'scale2' value for resize parameter of image control

    - new WindowID.maximize() and WindowID.unmaximize() actions
    - new WindowID.isMaximized boolean variable
    - doc updated

    - New Panel tag, allowing to group the resizing behaviour of controls
    - Documentation updated accordingly
    - Fixed a memory leak due to CtrlMove/CtrlResize objects

   nicer output

   controls. When set to "true", the behaviour of the resizing is changed
   (cf. documentation). The main use for these attributes is to keep a
   a control centered in the layout (horizontally, vertically or both) without
   resizing the control.

     - anchors have a new "lefttop" attribute, allowing them to follow the
       border of the window when resizing
     - the resizing is now handled by the WindowManager class (to enforce the
       mediator pattern). This makes it possible to handle tricky cases,
       such as:
           window B is anchored to window A, and A is resized
           ==> B moves accordingly, and can still be anchored by other windows

 (in KHz) + fixed the bitrate ("$B") variable to use only the audio bit rate.
* winamp2.xml: updated the winamp2 skin

* winamp2.xml: added "kbps" info in winamp skins

 * doc/skins/skins2-howto.xml: Updated doc