Add UMD-style pattern
Add UMD-style pattern

rubenstolk/IDBWrapper,GerHobbelt/IDBWrapper,kilbot/IDBWrapper,jayfunk/IDBWrapper,safetychanger/IDBWrapper,mizchi/idb-wrapper-promisify,kilbot/IDBWrapper,rubenstolk/IDBWrapper,safetychanger/IDBWrapper,jayfunk/IDBWrapper,jensarps/IDBWrapper,mizchi/idb-wrapper-promisify,jensarps/IDBWrapper