SciRuby/nmatrix — pull request #178 by diminish7 (2014-01-29 18:47:15+00:00)
Title: Fixes assignment to const RHASH_IFNONE

This addresses the following issue https://github.com/SciRuby/nmatrix/issues/176

In Ruby 2.1.0, RHASH_IFNONE is a const, and instead of
directly setting it, you call RHASH_SET_IFNONE.