Vars: Add new attach method for bool types too.
Fix small warning.
Vars: Support functions and add FunctionButton widget for activating closures etc.
Fix non-C++11 code path.
Examples: don't import namespaces.
Oculus: make compatible without C++11.
FunctionButton widget: only available with C++11.
Enable Boost GIL when available, even when not using other Boost features.
Missing Boost test.
Some fixes for MSVC 2012 to disable variadic templates and annotate some dll exports.
Var: Include missing cmath header.
TypeConvert.h: Comment unused variables.
Suppress libpng warnings from appearing on stdout.
Small tweak for older versions of libpng.
Re-enable automatically binding Pangolin vars to CVars when present.
Vars: Fix refactor bug.
Disable Oculus demo and HUD for time being, since it uses old API.
added oculus find changes for linux

Signed-off-by: Richard Newcombe <r.a.newcombe@gmail.com>
Remove status messages.
Renable key-repeat. Use ctrl-modifier for plotter on Windows/Linux. Fix modifier flags bug.