- replaced old 2nd order views with new adaptive stuff (still missing
  some function spaces for quads/hexas)

- fix bb computation to avoid model jumping around when adding points in z=0 plane
- pass interpol matrices as ref

  did in high
* added mesh generation error log summary
* removed Parallel subdir (this is now handled by the message class)
* removed Box subdir and consolidated batch processing in a single
  routine
* made List_T into a class
* reduced dependencies in Pview*.h so we can eventually add the post-pro
  interface to the public API

ported Warp, SphericalRaise and Eigenvalues plugins to the new post-pro API

untabify

upgraded all plugins to work with the new post-pro.

This is done "cheaply" for now, by only using old-style list-based datasets.
Taking advantage of the abstraction (so that we can use the plugins on all
datasets) will require more work. The hooks for transparent data translation
are in place, but the actual translation has not been implemented yet.

new gui for plugins (much better IMHO!)

- SVG export
- more work on new geo database

fix fpe

better averaging

typo

new plugin ExtractElements to extract elements whose values are comprised
in some interval