Revert "README for this fork"
This reverts commit 97db461e7f19c51e84fbf0dcb10fb25e0f582870.
Revert "Allow foo=bar global variable assignments"
This reverts commit 45a2017580ceb1ef2d79100b6cbf65d1db3c7fa5.
Revert "Interpret () in command position as subshell"
This reverts commit 0199583435c3b584b90769d50252d16105349671.
Revert "Allow special variables $?,$$,$@,$#"
This reverts commit 4a71ee12883a720408419a53482818177a834ec7.
Revert "Allow $() in command position"
This reverts commit 4b99fe2288da07ea1d0bc79ac0c829b65fee230a.
Revert "Turn off full LTO"
This reverts commit b1213f1385ad07578ca4db5f4fa7cb6371cb3be9.
Revert "Back out "bind: Remove "c-" and "a-" shortcut notation""
This reverts commit f43abc42f91adf43bb2dfc65b29dd4f838ea21cf.
Revert "Un-hide documentation of non-fish shell builtins"
This reverts commit 485201ba2e326a0c711c003290d6f6eb2e247012.
Yosemite know's about system-ui.
We do know `-apple-system` predated `system-ui` and are otherwise
aware that `Menlo` and `Helvetica Neue` will exist and be 'right'
on 10.10 and earlier.