Guidance on avoiding STL incompatibilities

[cpsauer]

Thanks for a great library :)

This is at least mostly a question: I know there's trickiness in avoiding STL conflicts on Android and that the prebuilt versions of fbjni use (an unknown version of) the c++_shared STL. Do you have any guidance on avoiding issues conflicting STL issues with fbjni? Should we always be building from source, rather than using the prebuilt aar?

[cpsauer]

One option that seems fairly good given the discussion in #69, might be to allow setting of the shared library name on the Java side and then allow users to statically link fbjni into their native code.