Merge branch 'better_workqueue_v3_squashed'

.gitignore

changes/better_workqueues

configure.ac

src/common/compat.c

src/common/compat.h

src/common/compat_pthreads.c

src/common/compat_threads.c

src/common/compat_threads.h

src/common/compat_winthreads.c

src/common/include.am

src/common/workqueue.c

src/common/workqueue.h

src/or/circuitlist.c

src/or/command.c

src/or/config.c

src/or/connection.c

src/or/cpuworker.c

src/or/cpuworker.h

src/or/main.c

src/or/onion.c