fix(code util): the code directive does the work now
feat(code util): add language to code block
fix(examples processor): clarify use of double newlines
docs(example Angular.js): add missing closing tag in example
docs(example controller guide): update ngdocs for testing
feat(code directive): pass through the language if specified
fix(code util): encode HMTL entities in code block
docs(example Angular.js): DRY up a link to code