Some updates in Traverse, Adapt.
Geom::area -> Geom::get_area()
Geom::diam -> Geom::get_diam_approximation()
Rewriting Func allocation for memory pool.
Trying memory pools implementations.
Merge branch 'devel' of github.com:hpfem/hermes into devel
Merge branch 'memory-pool' of github.com:hpfem/hermes into devel
Finish with PJ lib.
Making local matrices linear and save some memory in RefMap (testing).
Incorporate PJLIB into Hermes - optional for the time being.