GitLab

improve efficiency of multilayered indirect blocks

clean up tests

panic cleanup

clean up logic, improve readability

add final root node to the dagservice upon creation

importer: simplified dag generation

test: updated hashes using latest code

@whyrusleeping this is why the sharness tests
were failing: the hashes are added manually to
make sure our generation doesn't change.

cleanup after CR

fix merkledag tests

fix small block generation (no subblocks!)

cc @jbenet

working on dag modification structures, factored out the data format into an importer subpackage and added more ipns tests

link errors left:
- protocol buffers output is not lint-friendly