Log Message:
Update to 2.2.11

Changelog:
Version 2.2.11 (6 April 2015)
--------------

	Provide a mutex for calls to make-fresh-user-modules to deal with
	guile thread safety issues (c++-gtk-utils/Makefile.am;
	extension.h, extension_helper.cpp).

	Improve efficiency of scheme to C++ list translators for long
	lists (extension.h).

	Update libtool to version 2.4.4.

	Update code comments (extension.h, future.h, parallel.h,
	task_manager.h, task_manager.tpp).

	Update documentation (README; application.h, parallel.h, param.h).

Version 2.2.10 (24 November 2014)
--------------

	Permit Cgu::Thread::parallel_for_each(),
	Cgu::Thread::parallel_for_each_partial(),
	Cgu::Thread::parallel_transform() and
	Cgu::Thread::parallel_transform_partial() to take const source
	iterators (parallel.h).

	Provide Cgu::IntIter class to enable for loops to be more easily
	implemented with the parallel algorithms (doxygen.h.in,
	parallel.h; tests/test_parallel.cpp).

	With gcc >= 4.8 or clang >= 3.4, implement callback classes using
	std::tuple (this enables Callback::make() and Callback::make_ref()
	to take up to 10 bound arguments, avoids a lot of code duplication
	and makes for a cleaner implementation) (acinclude.m4,
	configure-gtk2.ac, configure-gtk3.ac; cgu_config.h.in,
	doxygen.main.in; callback.h, param.h; tests/Makefile.am,
	tests/test_tuple.cpp).

	Preallocate vectors in translator functions which return
	std::vector (extension.h).

	Correct information about clang compatibility (doxygen.main.in).

	Update documentation (async_queue.h).

Version 2.2.9 (6 October 2014)
-------------

	Provide AsyncQueue::move_pop_basic(),
	AsyncQueueDispatch::move_pop_basic(),
	AsyncQueueDispatch::move_pop_dispatch_basic() and
	AsyncQueueDispatch::move_pop_timed_dispatch_basic() methods
	(async_queue.h; tests/test_async_queue.cpp).

	Prevent new GTK+-3.14 deprecation warnings interfering with tests
	(test/test_application.cpp).

	Update build system to automake-1.14.1 (bootstrap-gtk2.sh,
	bootstrap-gtk3.sh, compile, Makefile.am).

	Update build system to gettext-0.18.2 (config.rpath; m4/*.m4;
	po/Makefile.in.in, po/Rules.quot, po/Makevars;
	c++-gtk-utils/Makefile.am, tests/Makefile.am,
	tests/extension/Makefile.am).

	Update tests (tests/test_callback.cpp).

	Add comments about strict aliasing with character set conversion
	functions (convert.cpp).

	Update documentation, including to cover C++14 (README;
	doxygen.main.in, async_queue.h, callback.h, convert.h,
	extension.h, fdstream.h, future.h, gstream.h, mem_fun.h, mutex.h,
	shared_handle.h, shared_ptr.h, task_manager.h, thread.h,
	window.h).