Now that we require C++11 we can do this.

Fixes 1d75db19

Now that we require C++11, no need to macro.

Leaving hb-atomic.hh as is since harmless and other projects might
copy from that file.

Can be useful when using HarfBuzz for font loading and shaping
but using DirectWrite for rendering.

https://github.com/harfbuzz/harfbuzz/issues/1641

Not planning on using it.  So remove.  Can add later if needed.

I don't like the hb_remove_reference() hack, but necessary.

Fixes https://github.com/harfbuzz/harfbuzz/pull/1639

Fixes https://github.com/harfbuzz/harfbuzz/issues/1592

Fixes https://github.com/harfbuzz/harfbuzz/issues/1541

* Add --with-graphite2 to macOS
* Add a dummy ragel script for psvita

Fixes https://github.com/harfbuzz/harfbuzz/issues/1612

MSVC does not set __cplusplus to the latest standard and also it does not like redefining some keywords.

It is not needed anyway

This allows partial-instantiating custom Null object for template Lookup<T>.
Before, this had to be handcoded per instantiation.  Apparently I missed
adding one for AAT::ankr.lookupTable, so it was getting the wrong (generic)
null for Lookup object, which is wrong and unsafe.

Fixes https://bugs.chromium.org/p/chromium/issues/detail?id=944346

Isn't absolutely needed.  But helps.

Let's see if I can make a release on Mac...

so they don't use deprecated variable

* add check to FDArray::serialize

* add test files

* fix off by one

Fixes fvar table sanitization where there are no named instance
by allowing zero length ranges starting from Null() address.

Fixes #1607