Merge pull request #620 from zeux/nostl-warnfix #224

Job	Run time
windows (Win32, standard)	1m 36s
ubuntu (g++, standard)	55s
windows (Win32, PUGIXML_WCHAR_MODE)	1m 17s
ubuntu (g++, PUGIXML_WCHAR_MODE)	55s
ubuntu (g++, PUGIXML_COMPACT)	56s
windows (Win32, PUGIXML_COMPACT)	1m 29s
ubuntu (g++, PUGIXML_NO_EXCEPTIONS)	49s
windows (Win32, PUGIXML_NO_EXCEPTIONS)	1m 19s
ubuntu (clang++, standard)	37s
windows (x64, standard)	59s
ubuntu (clang++, PUGIXML_WCHAR_MODE)	42s
windows (x64, PUGIXML_WCHAR_MODE)	1m 28s
ubuntu (clang++, PUGIXML_COMPACT)	42s
windows (x64, PUGIXML_COMPACT)	58s
ubuntu (clang++, PUGIXML_NO_EXCEPTIONS)	37s
windows (x64, PUGIXML_NO_EXCEPTIONS)	1m 28s
macos (clang++, standard)	42s
macos (clang++, PUGIXML_WCHAR_MODE)	44s
macos (clang++, PUGIXML_COMPACT)	42s
macos (clang++, PUGIXML_NO_EXCEPTIONS)	39s
	19m 34s

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