v0.8.2

• Added: ResourceSet's get method now supports a default keyword argument which is returned when a requested Resource can't be found in a ResourceSet and defaults to None, previously this was hardcoded to None
• Added: It is now possible to use getattr() with default value without raising a ResourceAttrError when calling non-existent resource attribute, see Issue #30 for details (thanks to hsum)
• Fixed: Issue #31 (Unlimited recursion was possible in some situations when on demand includes were used)