Cleanup README 1) Remove reference to README.debian, which is useless and no longer installed. 2) Remove the build instructions, which do not apply to the package. 3) Update the paths and utility names (e.g. in.imapproxyd to imapproxyd).
Move pidfile to /run Debian is converting to /run. This particular transition (from /var/run to /run) is currently optional. . See: https://wiki.debian.org/ReleaseGoals/RunDirectory