Added "Rotary revamped" and "Lense" lockscreen style.

    This patch was a team effort by me and
    Stefano Pignataro (Drakknar on xda)
    who initiated this and did all the
    grafics involved. Thanks mate!

    - Added revamped rotary lockscreen which looks
      much more polished
    - Added lense lockscreen (simple drop down
      as known from other roms)
    - Fixed landscape lockscreen for new styles
    - Fixed clipping issue - drag down now looks flawless
    - Modified lense style - it contains the date and time
      on the slider now - everything else is invisible
      -> only applies in portrait - in landscape no date/time
      on slider since impossible to read
    - Scaled lense in landscape for the ****ing status bar
    - Postioned buttons in landscape for the ****ing status bar
    - Modified default style to rotary revamped
    - added supported for user modifed density in build.prop
    - tested mdpi+hdpi both portrait+landscape (thx emulator!)

    Screenshots for easy preview:
    https://picasaweb.google.com/Dave.Astator/Cm7RotaryRevamped#

Change-Id: I9d24678a35b8ae1903412f0fa1cd0e4450e800a9