blind refactor
find_generator and merge_generator passing
computed_property passing
find_template passing
fs passing
generic_generator passing
get_templates passing
all green :O
random fixups in async branch
kill references in lib_sync
update node_module deps
v3.0.0 beta to npm
switched up the generator signatures

with async generator methods it was a pain to know
the whole signature of a method to simply get to
the `next` callback since you don't always need
the other arguments

to help keep the signatures easier to remember
`env` is now always the second argument

`present` has been simplified to only send `next`
and `env`.
v3.0.0-beta.2 to npm
supports multiple generator packages
v3.0.0-beta.3 to npm
skip unfound templates, notify user of paths
release v3.0.0