Do nothing yet (used for CLOEXEC, meaningless for us).

Various changes to fit into the OSv environment.  This also includes
a ramfs in-memory full filesystem.  Bootfs is rewritten as a simple
unpacker into ramfs, and the fs class is modified to wrap the VFS
instead of being an abstract subclass.

libstdc++ uses this semistandard function in its locale implementation.

The real thing is working already.

This allows generic code to include arch specific code, by eliding the
arch/x64/ prefix.

We will never build a single program containing code from two architectures,
so segregating arch-specific code into a separate namespace is not solving
any problem.  However it makes using arch-specific code from generic code
impossible.

Remove the 86 namespace to fix this.

This implementation stores small objects in pools of similar-sized objects,
while large objects are allocated using a first-fit algorithm.  There is also
a specialized interface for allocating aligned pages.