update dependency-libs for Gitian builds

- Update Boost from 1.50 to 1.53
- Update OpenSSL from 1.0.1c to 1.0.1e
- Update Qt from 4.8.3 to 4.8.4

Don't merge yet, as I need to update the documentation, this is just to see what pull tester is doing with it :).

Replaces #2108