Model auto-download does not work behind a proxy

[reckart]

Some users have reported that the model auto-download does not work behind a proxy.
Interestingly though, when adding the dependencies explicitly, it worked. They were
using Jython/jip.

https://groups.google.com/d/topic/dkpro-core-user/soUExn6jkcA/discussion

Original issue reported on code.google.com by richard.eckart on 2015-05-12 10:51:45