Big DynamicLog refactor.  Added statusBar, improved compositionality for dzen and xmobar Compatibility notes:     - dzen type change     - xmobar type change     - dynamicLogDzen removed     - dynamicLogXmobar removed
Big DynamicLog refactor.  Added statusBar, improved compositionality for dzen and xmobar
Compatibility notes:
    - dzen type change
    - xmobar type change
    - dynamicLogDzen removed
    - dynamicLogXmobar removed
MasseR/xmonadcontrib,MasseR/xmonadcontrib