New-style object now we're using super properly
Reverted vector changes lingering from cfb5faf2 for compatibility
Revert "moved blockId to block as an enum"

This reverts commit 48ee62eefac85968e725826a23dfabb3317fea8f.

Conflicts:
	mcpi/block.py

Significant compatibility breakage
Partial revert of e8d2ac485ff7ea285ef88262b3f298c6ced770cf for flatten

And now test_usage passes!
Delete trailing blank line
Revert deletion of util.py and give it some PEP8 love
De-vertical-align

I'm not hugely convinced by the merits either way here...
PEP8 fixes
Fix Block test for original API