Support multiple $refs in sequence
Update main library (remove logging)
Bump version (1.0.11)
Trigger re-build
Clarify `format` support in readme

The documentation was worded in such a way that I inferred built-in format validators (specifically, those listed in the JSON-Schema spec). Just added a bit of clarification to the readme to explicitly state that there are no format validators built-in.
Merge pull request #71 from jasonkarns/patch-1

Clarify `format` support in README
Change checkRecursive key name
Fix #83: cache results for recursive schemas

When dealing with recursive schemas, don't just return null (which
assumes a pass) - cache the errors from last time, and add them to the
current error list.

It was working fine for the plain validate() method (when the only time
you'd see a data/schema pair twice is if it had no errors), but was
causing problems with validateMultiple().