* lib/matrix/eigenvalue_decomposition: Fix eigensystem with complex
  eigenvectors. Patch by pypypy567.
  [Bug #7208] [ruby-dev:46251] [rubyspec:242f8e55bd]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38799 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Update Changelog for r38797

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38800 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/bigdecimal/bigdecimal.c (BigDecimal_sub):
  need to specify precision for converting Rational and Float.
  [ruby-dev:46544] [Bug #7404]

* ext/bigdecimal/bigdecimal.c (BigDecimal_mult): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_divide): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_DoDivmod): ditto.

* ext/bigdecimal/bigdecimal.c (BigDecimal_divremain): ditto.

* test/bigdecimal/test_bigdecimal.rb: add tests for the above fixes.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38801 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
* ext/psych/yaml/scanner.c: Fix typos, patch by James Dabbs
  [Github tenderlove/psych#118]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38802 b2dd03c8-39d4-4d8f-98ff-823fe69b080e