fix ctypes_adaptors.iterate_numbers; WIP: fix imports;
test_wdb.py: add parameter names and prettify code
move test/test_wdb.py to the examples sections as wdb_primitives.py
improve parameter handling of combinations
add examples/wdb_globe.py
replace min_brlcad_version with compare_version
Merge remote-tracking branch 'javampire/master'