Add 'replace' property tests to node renderers specs
Add nxt.ContentManager spec
Add nxt.ContentRegion spec draft
Lint specs source files
Add nxt.ContentRegion spec reference to test.html
Add a trivial authentication demo draft
Fix bindings in AuthForm view
Add node type check to nxt.Element helper spec
Add nxt.EventRenderer spec
Add set method tests to nx.Property spec
Add nx.Collection spec draft