to make sure only the minimum number of file handles is left open
during a exec call. This is not a 100% solution, as there are also
some fopen() calls and, more importantly, file descriptors opened
by libraries. But it is better than nothing (and it was quick, at
least until we run into platform hell, what we will for sure ;)).

pkg-config uses uppercase for its _CFLAGS and _LIBS variable names.
So we follow suit and convert all _cflags and _libs variables to
uppercase for more consistency.

...this improves performance and consistency and also fixes
a bug where subsecond time properties generated by imfile, imklog and
internal messages could be slightly inconsistent.

- added message property "inputname", which contains the name of the
  input (module) that generated it. Presence is depending on suport in
  each input module (else it is blank).
- added system property "$myhostname", which contains the name of the
  local host as it knows itself.

The limit can now be set via $MaxMessageSize global config
directive (finally gotten rid of MAXLINE ;))

Conflicts:

	ChangeLog
	configure.ac
	doc/manual.html

- Update the version number and date in the man pages
- s/imklogd/imklog/

Signed-off-by: Rainer Gerhards <rgerhards@adiscon.com>

Conflicts:

	doc/property_replacer.html
	tools/syslogd.c