* Fix multilib + rpm since its multilib package name is special.
* Update SSTATE_DUPWHITELIST to avoid shared location conflicted error.
* Fix message when "not copying", now the messages are:
Copying packages for recipe <foo>
Not copying packages for recipe <foo>
Signed-off-by: Robert Yang <liezhi.yang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com>