DOC: explain "-list" option
NF: add "surfing" as external
DOC: add example of using "-list" option
RF: simplify stacking feature attributes
RF: fix indent
SML: minor refactoring
NF: support smp files
RF: more general support for dimensional dataset, and added surface support
DOC+RF: updated surfing toolbox external check
DOC: describe "set_missing_to"
NF: support single dimension
BIG+NF: surface dataset support
BIG+NF: support for neighborhood on the surface