Update changelog
Update changelog

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