Noodle, a search engine for educational resources, has acquired AllClasses in an all-equity deal. Prior to being acquired, AllClasses nabbed $1.5 million in investor funding last year. The acquisition will add over 100,000 classes to Noodle’s database, and it will also give its technology a major boost. Already, Noodle has more than 800,000 school, tutoring and workshop profiles in its database. Noodle scrapes the …