Makes use simpler. The setools submodules map 1:1 to classes anyway;
the separate modules are simply to ease organization.
Change seinfo to use conditional setter use rather than conditional
instantiation of queries. Note: pylint disable is added because pylint
gets confused by the reuse of the q variable and thinks that q is always
BoolQuery, so it incorrectly reports missing member functions.
Fully compare the lists rather than only counting objects.
Also fix comparison problem in Nodecon and Genfscon. In libqpol, the all
genfscons/nodecons iterators allocate new objects, so the pointer
comparison in PolicySymbol fails.
