LisperWeasel

Results 3 issues of LisperWeasel

A small number of errors code in errno.h for linux are not implemented/different in errno.h for OpenBSD. [iolib-openbsd-0.8.3.tar.gz](https://github.com/sionescu/iolib/files/1227473/iolib-openbsd-0.8.3.tar.gz)

These changes are made looking at OpenBSD errno.h include file.

Added the following keys/variables in .conf file: ReadBufferLength WriteBufferFlushLength WriteBufferMaximumLength WriteBufferServerLinkLength under [LIMITS].

enhancement