Updating docs for new --hpx:print-bind output
Added singlepage_docs target to build a single html document page
Marking cmake documentation options non-advanced
Fixing single-page doc generation
Adding link to single-page docs
Working on #726: Valgrind

Adding basic valgrind support
Disable Valgrind for the xeon phis
Fixed #886: Logging documentation is confusing
More tweaks to logging docs
Disable member variable if Valgrind is not found
Fix main cmake file to use a variable only after it was defined
Simplify move-emulation aware remove_reference
Qualified calls to make_ready_future to avoid ADL issues