Cleaning documentation.
Calling config system in vector_buf example before first test.
Adding format_IEC_size to format byte sizes as e.g. 1.03 Gi
Fixing compilation warnings on clang 3.3
Rewriting documentation about buffered reader and writer, adding const_iterator method.
Adding emacs mode line to extensionless headers.
Fixing header compilation and adding more noncopyables.
Implementing atomic_counted_object for counting_ptr using std::atomic.
Adding benchmark_pqueue to stxxl_tool to benchmark PQ.
Adding simple instruction to build with Visual Studio, without Boost.
Merge ssh://github.com/bobbthebuilder/stxxl-doc

Conflicts:
	examples/containers/pqueue_minimal2.cpp