commit a3c93003eec7b97a108e85ed865d5a739ec7f885
Author: Jostein R. Natvig <jostein.r.natvig@sintef.no>
Date:   Thu Jun 11 07:33:50 2009 +0000

    Initial checkin of cornerpoint processing code.
    
    Current status
    --------------
    Given vectors ZCORN, COORD and ACTNUM as well as the Cartesian
    dimensions these vectors implicitly refer to, the code is
    currently capable of
    
     * Identify unique points along each pillar
     * Assign point numbers for each point specified in ZCORN
     * Compute face topology, i.e., the corners that define the geometry
       of the faces as well as the cells that are connected through the face.
     * Identify and compute intesections that occur in the processing of
       face topology.
    
    What remains is
    
     * Handle the face geometry of boundary faces. (simple)
     * Compute point coordinates of the final point list.
     * Put all pieces together in a tidy manner.