initial checkin
added manpages
added man subdir to autotools environment
extended autotools configuration
Added new runtime_data hashtable to mconn structure. It may be used
to store additional informations for other plugins.
Modules and engine can now be configured without the lib prefix.
It's now possible to define a response code/message,
if delivery to nexthop fails.
Added module_fail option. If one module fails, the behaviour
of spmfilter can now be configured.
Added pipe engine.
Removed pcre lib, it's better to use gregex :-)
updated man page
defined smtp codes in spmfilter.h
double close is not good :-/
fixed syntax error
smtp return codes can now be configured in spmfilter.conf
renamed smtp_codes config section to smtpd, since it's possible
that more config options are coming.
modules can now return the smtp return code, if >= 400. the
code message will be read from config file.
Since gregex appeared in glib version 2.14, we need a fallback to
pcre.
added pcre fallback function, if glib2 <= 2.14
replaced gregex in main.c