.zsh/rc: add 00gobin.sh

Adds /usr/local/go/bin to the PATH before other scripts run; used by the
OSX Go package installer.
.gitconfig: Add work email as identity
Update submodules
.ssh/config: Update pixiv hosts
.zsh/pre/mosh.sh: disable 'ps' execution on OSX
bin/emacs: Correct invocation path

While executing `which -a` would also include the alias in an interactive
shell, there are no aliases inside the script, so the filtering resulted
in an incorrect path.