ObjFW  History of src/autorelease.m of 4af49a13c3efca34

This allows the runtime to only link against the parts it needs, without
pulling in unnecessary parts like thread spawning, TLS and conditions. file: [b0d97cac69] check-in: [5358e9ea6a] user: js, branch: trunk, size: 3225 [annotate] [blame] [check-ins using] [diff]

Forgot to add 2017, even though I already did quite some changes in
2017. file: [93f43616e8] check-in: [44f45c2e35] user: js, branch: trunk, size: 3234 [annotate] [blame] [check-ins using] [diff]

While at it, also update the mail address. file: [6e4824285d] check-in: [2a27cf3000] user: js, branch: trunk, size: 3228 [annotate] [blame] [check-ins using] [diff]

This means that OFObject.h imports macros.h now, making it unnecessary
to manually import macros.h in almost every file. And while at it, also
import autorelease.h in OFObject.h, so that this doesn't need to be
manually imported in almost every file as well. file: [25db58e712] check-in: [13ee56edf3] user: js, branch: trunk, size: 3218 [annotate] [blame] [check-ins using] [diff]

If threads.h exists, the thread_local from there is used. If it doesn't,
but _Thread_local exists, it's defined to that. As a last fallback, it
is defined to __thread. file: [2dc209441b] check-in: [c701e89b83] user: js, branch: trunk, size: 3258 [annotate] [blame] [check-ins using] [diff]

It is also required when using the Apple runtime on OS X prior to 10.7. file: [af6605d688] check-in: [85cbeeeb04] user: js, branch: trunk, size: 2748 [annotate] [blame] [check-ins using]