Made clone_structure public and fixed a spec context name problem
mentioned in #54.
Improvements to NMatrix.random
added reshapeBang function to reshape in place
tests added
new shape can now be passed in different ways
new shape can now be passed in different ways in normal reshape method also
reshape! not allowed on reference slices
more tests
Merge pull request #203 from rajatkapoor/reshapeInPlace

reshape! added for dense matrices, fixes #169, supercedes #192
Added PCD file reader (for Point Cloud Library), and removed some of the
autoloads in NMatrix::IO.
Updates to history and README
Merge branch 'master' of github.com:SciRuby/nmatrix
Update history
Fixed mistake in History.txt
Reverted autoloads in NMatrix::IO as they break other packages that
don't have the packable gem in their bundler files.
Added unary negation of matrices
Fixed spec bug and casting problem for unary negation.
Release gem version 0.1.0.rc2
fix 00_nmatrix_spec.rb#297  # FIXME: Actually test that values are correct.
Add 2.1.1 to yaml

Bug https://github.com/SciRuby/nmatrix/issues/214