Merge branch 'tamuratak-fix_ruby_wstring'

* tamuratak-fix_ruby_wstring:
  [ruby] use %fragment to clarify the dependency of code.
  [ruby] should initialize static variables inside %init{}, in which it will not be        excuted concurrently by multiple threads.
  [ruby] * use static variable to avoid creating stirngs every time.        * fix possible overflow.
  [ruby] add std::wstring tests for string including a null terminator.
  [ruby] * rewrite SWIG_AsWCharPtrAndSize and SWIG_FromWCharPtrAndSize        * use UTF-32LE and UTF-16LE to avoid BOM        * add tests
  [ruby] use WCHAR_MAX to determine the encoding of std::wstring.
  [ruby] add a few tests for std::wstring
  [ruby] fix support for std::wstring.

Examples/test-suite/ruby/Makefile.in

@@ -21,6 +21,7 @@ CPP_TEST_CASES = \
 	li_std_queue \
 	li_std_set \
 	li_std_stack \
+	li_std_wstring \
 	primitive_types \
 	ruby_keywords \
 	ruby_minherit_shared_ptr \