- moves renderer callbacks to UI thread

- removes natpmp from dependencies

- adds openssl dlls for restbed/namedirectory features

- reverts 7e326091b01bd818ea57a8e90a61ac05e3d50b4b

Change-Id: I8d6d99bd16e9a2bcaa3bd8db4bee5888e12af821
Tuleap: #1242