Update oslo-incubator apiclient.exceptions

Changes -
 * deprecate apiclient package
 * Handle different format of api exception
 * Split cliutils
 * Remove code that moved to oslo.i18n

Change-Id: Iba23b2153b9f7be6ea6efe7ff189080a96c45168
Merge "Update oslo-incubator apiclient.exceptions"