* feat(core): wrap Aliyun short message service connector
* feat(core): connectors package.json private should be FALSE
* feat(core): fix dependencies and remove query-string.stringify()
* feat(core): wrap Alipay web connector and fix UTs/dependencies accordingly
* feat(core): changed some utils functions' modifier from public to private
* feat(core): fix node version
* feat(core): removed unnecessary dependency