[OE-core] [for-dora] Dora backports

[Otavio Salvador]

Hello,

I am adding OE-Core and Yocto mailing list as destination as this has
fixes for both.

While setting a build system, in a very clean host installation I
found some issues which were fixed in master and ought to be
backported to Dora:

meta-yocto:
 - 1893d1576c1e7acc9881b3392a838c575019f18d (poky.conf: add Debian 7.2
to SANITY_TESTED_DISTROS)
 - a452c02c880d1840f1150e59eede3f173f067c5f (poky.conf: add Debian 7.3
to SANITY_TESTED_DISTROS)

OE-Core:
 - 97e1d84e2d1a74791ce6af88ddc27963bc0e1bec (base.bbclass: pull in
file-native for src.rpm)

Specially the missing 'file' took me some time to figure so it is
horrible to have this error for new users. This could be fixed for
older releases as well (dylan at least).

Regards,

-- 
Otavio Salvador                             O.S. Systems
http://www.ossystems.com.br        http://code.ossystems.com.br
Mobile: +55 (53) 9981-7854            Mobile: +1 (347) 903-9750