Changes since 1.11.0

BUGS
====
Fix NULL pointer crash in nfs_link().

Clamp read/write size for servers (Ganesha) that offer very large io sizes
instead of failing to connect to the export.

Tell the server to commit all data to stable storage when we close files.

Double free fix: don't call rpc_free_pdu() after rpc_queue_pdu() failure.

Fix for memory leak in rpc_allocate_*().

Fixes to build nfs-ls and nfs-cp on win32.

Abort the mount process correctly if MOUNT/MNT returns error or is cancelled.

Fix memory leak in error path in nfs_create_2_cb().

Fix leak of rpc->inbuf if we destroy the context while we still have PDUs
in flight.


FEATURES
========
Add O_NOFOLLOW support for nfs_open()

Add a new mkdir2 command that also takes a mode argument.

Add a new readlink2 command that avoids having to preallocate the buffer.

Add support for RPC timeouts for both the sync and async interfaces.

Build fixes for Mingw and Cygwin

Update README to document two new Windows builds

Use SOCK_CLOEXEC for the sockets

Make rpc_set{g|u}id() public

Performance optimization: socket: Batch pdu read in rpc_read_from_socket

Low level support for NFSv4 and some examples

Support for building RPC servers