example: Add missing include for forkpty().
examples: Make sure buffer is initialized.
pki: fix gcrypt signature process
tests: avoid reading uninitialized bytes
update copyright information
cmake: Remove unused macro modules.
src: Update my mail address.
include: Fix building if we do not have asm volatile.
include: Remove warning cause VSC doesn't know about it.
ChangeLog: Set release date.
threads: support libgcrypt 1.6 hack

Not 100% satisfied of this patch, but the way libgcrypt handles
threading in 1.6 is not compatible with custom handlers. The
new code basicaly uses pthreads in every case. This will probably
not work on windows.