julia -> 0.3.3

@7c6f434c could you please try to build this and check whether
```
strace -ttT julia -e "exit()" 2>&1 | grep sys.so
```
returns something like
```
open("/nix/store/48784vljgxgfkywrgrhs0s6fpk2i3r26-julia-0.3.3/bin/../lib/julia/sys.so", O_RDONLY|O_CLOEXEC) = 14 <0.000223
```
For whatever reason `sys.so` was not part of the `0.3.2` nix build from hydra, although it is present when I build the nix expression myself. Not clear to me why.