Merge tag 'v1.0' into debian

NSCA-ng 1.0

* tag 'v1.0':
  NSCA-ng 1.0
  etc/nsca-ng.cfg: Fix indentation
  contrib/invoke_check: Fix our send_nsca(8) call
  contrib/downtime: Fix our timestamps
  contrib/debug_server: Fix send_nsca.cfg(5) parsing
  COPYING: Slightly improve wording
  Make Clang happy
  PROTOCOL: Improve wording a bit
  Mark Markdown files as such for Vim
  configure.ac: Set AC_CONFIG_MACRO_DIR()
  etc/nsca-ng.cfg: Give better examples
  etc/nsca-ng.cfg: Add a default "authorize" section
  TODO: Add a wish list item
  Log a notice when (re)opening the command file
  PROTOCOL: Clarifications regarding PUSHed commands
  Use AES256-CBC instead of RC4 by default
  Only use the command file if it's a named pipe
  m4/aio.m4: Use AIOLIBS when testing POSIX AIO
  Add "authorize" section for PING-only access
  src/common/tls.c: Add missing "break" statement

Conflicts:
	contrib/README
NSCA-ng 1.0, Debian package