fix dpdk-conf locations
move dependencies to the 'deps' subfolder

Squashed commit of the following:

commit c12c6b0284bb81b713eb4c9ed9af24d2967edbbd
Author: Paul Emmerich <emmericp@net.in.tum.de>
Date:   Sat Nov 1 17:20:56 2014 +0100

    fix cmake file

commit e9418e4feb094897d637c6c7c82f4ea10bdbb36e
Author: Paul Emmerich <emmericp@net.in.tum.de>
Date:   Sat Nov 1 17:16:38 2014 +0100

    update build script

commit df65bab70ecf726c6eccd1e1f29fea1e84a85216
Author: Paul Emmerich <emmericp@net.in.tum.de>
Date:   Sat Nov 1 17:12:08 2014 +0100

    move luajit to deps folder

commit 8c39eac6d91c2b793a31a934ef7ba3bb5dcae146
Author: Paul Emmerich <emmericp@net.in.tum.de>
Date:   Sat Nov 1 17:07:18 2014 +0100

    move dpdk to deps folder