WIP: Delete the automake support.

The meson build was in the last release, giving people a chance to switch. It provides faster builds with a smaller, easier build description language, so it's time to retire automake.

TODO:

• developer docs build (!165)
• dtrace
• BUNDLE_ID_PREFIX (!177 (merged))
• Test building xquartz (!177 (merged))
• more sha1 lib options (!318 (merged))
• libunwind support (!272 (merged))
• Xorg.wrap broken (#539 (closed))
• Inconsistency between #define FOO (meson) and #define FOO 1 (autotools)
• Inconsistency between INPUTTHREAD (autotools) and HAVE_INPUTTHREAD (meson) (#936 (closed))
• Support to disable libdrm (Hurd/kfreebsd)
• Support to disable udev (Hurd/kfreebsd)

Signed-off-by: Eric Anholt eric@anholt.net