- Added new leafs to the hodoscope tree.
 - Added new leafs to the aerogel tree.
 - Added new leafs to cerenkov tree.
 - Added new leafs to the shower tree.

Left all the old leafs in there. Will need a careful cleanup...

  Add a new parameter Xaero_tdc_offset to make sure valid tdc
  hits from a reference time corrected tdc are positive.
  Accept first first positve tdc hit after applying offset.
  Move array filling in CoarseProcess into Decode

  Use InitArrays method in THcCherenkov and THcAerogel
  Null out all array pointers in the InitArrays method and
  call that method from all constructors so that it is always
  safe to delete these arrays.

    Register some more variables for the tree
    Clear fNelem of some arrays, not fNhits.
    Print method to print Aerogel pedestals.
    Make Pedestal analysis a bit more like the ENGINE.
    Initialize counters

Added haero.param to general.param.