...which permits to set a new console log level while rsyslog is active

some things inside the message can be used over a large number of
messages and need to to be allocated and re-written every time. I now
begin to implement this as a "prop_t" object, first use for the inputName.
Some input modules are already converted, some others to go. Will do
a little performance check on the new method before I go further.

Also, this commit has some cleanup and a few bug fixes that prevented
compiliation in debug mode (I overlooked this as I did not compile
for debug, what I normally do, and the automatted test also does not
do that)

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 ;)).

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:

	ChangeLog
	configure.ac
	doc/manual.html
	plugins/imklog/linux.c

Conflicts:

	plugins/imklog/linux.c
	runtime/cfsysline.c
	runtime/ctok.c
	runtime/linkedlist.c
	runtime/sysvar.c

this callback is somewhat unportable in combination with dlopen()