several fixes to levelset plugin (multi-step non-simplexs, extract volume for non-simplex, adaptive prisms)

forgot to update finalize prototype (fixes bug with missing recomp of min/max in plugins on list-based views)

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(in nonlinear transient analyses, one typically saves results at regular time intervals, corresponding
to arbitrary time step numbers). 
Application of the plugin results in a view with dense step numbering, which can still cause 
difficulties when combined with another view on which this treatment has not been applied.

Plugin Distrance cleaned

hack gshhs plugin to use the same stereographic coord as the dg code (user write_polar_sphere = -2 option)

- fixed MED node ordering
- polished 64 bit Cocoa Mac OS X FLTK version
- updated copyright

is then available to the plugin) -- for Koen

(useful for simulating synthetic foam-like materials)

Plugin for computing u=a*exp(j*k*phi), from views containing a complex amplitude a, and a phase phi.

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(still need more work to work transparently on multisteo datasets)

AnalyseCurvedMesh development (should work in all cases, edit PluginManager.cpp to activate the plugin)

AnalyseCurvedMesh development (works for triangle and tetra but is not yet optimized and is still incomplete, edit PluginManager.cpp to activate the plugin)

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