Janusz Opiła - 2011-01-30

Hi everybody!
New version will be published soon. There is a lot of improvements in comparison
to 2.0 published on 31 December last year.
New features and changes:
- two or more surfaces can be placed next to each other,
- completed code for surfaces from:
   * regular (i.e. matrix data),
   * irregular (scattered data) - two approximation algorithms have
      been implemented - krigging-like and "user's potential". The latter is
      based on potential energy analogy, user can define her own potential function,
-  improvements to the positioning algorithm of x-axis description
    for histograms (and other kinds of chart),
To DOs:
- improve creation of grid of charts (?)
- code cleanup, add comments, remove unused/experimental code
- reorganize code through #include files so to make it more shareable
  (for example coordinate system + axis descriptions + legend)
- create 

.txt

code chunks for menuing system,
- validate code against upcoming new, revolutionary 3.7 PovRay version.
- ?
Mr_3D_Plot
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