appendix_contributing.xml: Do not use "here" as link text.

appendix_contributing.xml: Do not use "here" as link text.

	* doc/xml/manual/appendix_contributing.xml: Do not use "here" as link
	text.
	* doc/xml/faq.xml: Likewise. Do not request standard library issues
	to be reported to the libstdc++ mailing list.
	* doc/xml/manual/status_cxx2011.xml: Document implementation-defined
	behaviour.
	* doc/xml/manual/status_cxxtr1.xml: Likewise.
	* doc/xml/manual/utilities.xml: Fix grammar, probably caused by a
	global search and replace of "part" by "chapter".
	* doc/xml/manual/shared_ptr.xml: Remove outdated information.
	* doc/xml/manual/messages.xml: Be more specific about systems where
	using 'int' for catalog handle is not a problem, mentioned LWG issue.

From-SVN: r181532