[Bf-funboard] RFC: rvk sliders

[Chris Want]

Hello,

I've committed a design for rvk sliders in the action window
to tuhopuu last night. Instructions, as taken from
our featurelist.txt:

*** Hos: support for using the action window as a tool for modifying
          (mesh or lattice) RVK IpoCurves: support currently includes:

          - RVK sliders. Pressing the little triangle next to
            the word 'sliders' in the channel names opens them up.
          - NKEY in the area where the key block names are allows the
            user to change the name of the keyblock, and the max and min
            values of the RVK sliders.
          - ability to visualize the keyframes for the IpoCurves when
            the object is selected.
          - right mouse can be used to select the keys
          - border select in the main area can be used to border
            select keys.
          - AKEY selects/deselects all of the keys
          - GKEY and SKEY can be used to grab or scale the key
            selections.
          - XKEY deletes the selected keys.
          - DKEY duplicated the selected keys.
          - VKEY, HKEY and shift-HKEY change the bezier handles for
            the selected keys.
          - PAGEUPKEY/PAGEDOWNKEY in the action window changes the 

            current frame to the next/previous frame for which the key
            ipo has a keyframe (that frame is also centered in the
            action window).

            A demo file with a lot of rvk'ed objects (including lattices)
            is here:
            http://bebop.cns.ualberta.ca/~cwant/rvkdemo4.zip

Any feedback or recommendations from users is appreciated.

Chris