Add 2.1.1 to yaml

Bug https://github.com/SciRuby/nmatrix/issues/214
fix 00_nmatrix_spec.rb#297  # FIXME: Actually test that values are correct.

Conflicts:
	spec/00_nmatrix_spec.rb
add non-in-place & test1
add non-in-place conjugate & test2
add non-in-place conjugate test for all dtypes
add non-in-place conjugate test for all dtypes
Update history for rve's complex conjugate stuff.
fix 00_nmatrix_spec.rb#297  # FIXME: Actually test that values are correct.

Conflicts:
	spec/00_nmatrix_spec.rb
Complex conjugate fixes for #210 and #212.
Merge commit '65c75d194742b955661486cd9d7323536c3bc5d4'

Conflicts:
	spec/00_nmatrix_spec.rb