Fix pylint >1.4 pycurl no-member warnings
Fix pylint >1.4 pycurl no-member warnings

Add pycurl to the whitelist of C extensions that can be loaded for the
purposes of attribute checking. This works around a security feature
introduced in pylint 1.4 to avoid arbitrary code injection.

Signed-off-by: Brian Foley <a00e555871a6a538e97f8c44307104c884f8e869@google.com>
Reviewed-by: Federico Pareschi <ff862f58af48d157b995cd83870fbfa4aec8edf3@google.com>

andir/ganeti,andir/ganeti,ganeti/ganeti,mbakke/ganeti,ganeti/ganeti,onponomarev/ganeti,yiannist/ganeti,mbakke/ganeti,yiannist/ganeti,onponomarev/ganeti,mbakke/ganeti,ganeti/ganeti,andir/ganeti,yiannist/ganeti