Test cleanup for txns.  Fix the clear in the bootstrap.  Add txns in the
load and clear, rather than doing this outside the function.  Move all
the kernel loading/clear methods to kernelImpl.  Re-add kernel impl as
this is a much faster way of loading the kernel, which is critical in
the java stored procedure reentrancy.  Loader is now using the new
regime.  Change troublesome tests to simply use the abstract model test.

Agency login test does not work due to missing metadata from the kernel,
which was only initialized in Animations.