Wrong version in version.hpp of ViennaCL library 1.7.1 installed by apt-get

[Nish Aravamudan]

On 17.10.2016 [09:51:38 -0700], Andrew Musselman wrote:
> Thanks; will let the upstream project know.

Note that upstream already fixed this:
https://github.com/viennacl/viennacl-dev/commit/2287c217f03ce115cca0fd00c95ddf200badb2f9

Seems like they should either release 1.7.2 or 1.7.1.1 to fix this
issue.

-Nish