Restructed schema module slightly to be more friendly
to browser. Will consider repeating this pattern
all over, but need to figure out how it will work
with odgn.entity namespacing.

Tests for retrieving schema properties.
Merge branch 'jsonschema-refactor' of https://github.com/odogono/odgn-entity into jsonschema-refactor

Conflicts:
	lib/schema.js
	test/test.schema.js