minor comment edits
(api change) - do not pass err arg to typer() functions

this arg was always null for a while after, typer() checks
were moved after error check...
new: expose a function for short-circuiting recursion based on dir contents
swap back to tape from tap
go back to EventEmitter instead of Stream
note! api change, remove err arg from typer()

this arg was always null for a while after, typer() checks
were moved after error check...
api change fix, style changes, comments
rm license file
readme
v1.0 for semver since event callback signature changed
minor lint, test update, read me update
Merge branch 'v1' into develop