Fixed problems with getting mac address on Linux: don't depend on interface ordering, on Linux the fist interface is loopback which always has empty mac. On Windows the order seem somewhat random.
Fixed problems with getting mac address on Linux: don't depend on interface ordering, on Linux the fist interface is loopback which always has empty mac. On Windows the order seem somewhat random.

git-svn-id: e915c4f8b2ea2a6e63cbe989b51c0994a698cc26@3300 52acb1d6-8a22-11de-b505-999d5b087335

logicmoo/libopenmetaverse,radegastdev/libopenmetaverse,logicmoo/libopenmetaverse,logicmoo/libopenmetaverse,radegastdev/libopenmetaverse,radegastdev/libopenmetaverse,logicmoo/libopenmetaverse,logicmoo/libopenmetaverse,logicmoo/libopenmetaverse,tectronics/libopenmetaverse,tectronics/libopenmetaverse,tectronics/libopenmetaverse,radegastdev/libopenmetaverse,tectronics/libopenmetaverse