liblogging rename
adapt to liblogging 1.0.1
ompgsql bugfix: improper handling of auto-backgrounding mode
correcting a slightly wrong code location

did have no effect, but could cause trouble with future plugin
interface changes.
update ChangeLog
ompgsql: remove unnecessary connetion open/close at startup
json templates are improperly created

See also: https://github.com/rsyslog/rsyslog/issues/27
maintain ChangeLog
prepare for 7.4.10 release
Merge branch 'v7-stable' into v7-devel

Conflicts:
	ChangeLog
	configure.ac
	doc/manual.html
prepare for 7.6.0
Merge branch 'v7-stable'

Conflicts:
	ChangeLog
	configure.ac
	doc/manual.html
	plugins/ompgsql/ompgsql.c
Update ommongodb.c

Template is not mandatory regarding latest documentation
maintain ChangeLog
Merge branch 'v7-stable'

Conflicts:
	ChangeLog
Fix json includes

Rely on the include paths set by json-c.pc instead of hardcoding
the include to be <json/json.h> since this breaks with newer versions of
json-c where the files are installed in /usr/include/json-c.

While at it, remove a duplicate include.
Use automake 'subdir-objects' option

Newer automake versions complain if we use source files in subdirectories:

autoreconf: running: automake --add-missing --copy --force-missing
plugins/omelasticsearch/Makefile.am:4: warning: source file 'cJSON/cjson.c' is in a subdirectory,
plugins/omelasticsearch/Makefile.am:4: but option 'subdir-objects' is disabled
automake: warning: possible forward-incompatibility.
automake: At least a source file is in a subdirectory, but the 'subdir-objects'
automake: automake option hasn't been enabled.  For now, the corresponding output
automake: object file(s) will be placed in the top-level directory.  However,
automake: this behaviour will change in future Automake versions: they will
automake: unconditionally cause object files to be placed in the same subdirectory
automake: of the corresponding sources.
automake: You are advised to start using 'subdir-objects' option throughout your
automake: project, to avoid future incompatibilities.
runtime/Makefile.am:7: warning: source file '../action.c' is in a subdirectory,
runtime/Makefile.am:7: but option 'subdir-objects' is disabled
runtime/Makefile.am:7: warning: source file '../threads.c' is in a subdirectory,
runtime/Makefile.am:7: but option 'subdir-objects' is disabled
runtime/Makefile.am:7: warning: source file '../parse.c' is in a subdirectory,
runtime/Makefile.am:7: but option 'subdir-objects' is disabled
runtime/Makefile.am:7: warning: source file '../outchannel.c' is in a subdirectory,
runtime/Makefile.am:7: but option 'subdir-objects' is disabled
runtime/Makefile.am:7: warning: source file '../template.c' is in a subdirectory,
runtime/Makefile.am:7: but option 'subdir-objects' is disabled
autoreconf: Leaving directory `.'

Explicitly set the 'subdir-objects' option to avoid any future issues.

Fixes #33
Merge branch 'fix-json-includes' of https://github.com/mbiebl/rsyslog into v7-stable
maintain ChangeLog
Merge branch 'v7-stable'

Conflicts:
	configure.ac