Use libgeotiff_DIR and Shapelib_DIR as CMake or as environment variables.

Using logog in BaseLib and some code cleaning

removed highlighting of boreholes again due to severe colour-lookup-table issues; tidied up lots of other very small things

fix errors that BLAS and LAPACL lib are not linked in MathLib

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See http://www.kitware.com/blog/home/post/434 why Ninja is interesting.

fixed issue #26 ; fixed problem with CMAKE not finding VTK_DIR if other small libraries are build at the same time.

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