configure.ac: Add support for --enable-debug

This adds an --enable-debug option which turns on the ENABLE_DEBUG macro
if passed to configure. It does not touch the CFLAGS, as we should be
building with -Wall -g anyway, and the level of debugging info needed is
best left for the user. This closes #76.

Reported-by: Viktor Tusa <tusavik@gmail.com>
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
Merge pull request #78 from algernon/f/configure/enable-debug

configure.ac: Add support for --enable-debug
This provides a module to produce logs on an Apache Kafka
distributed queue.

The configuration allows choosing a fixed, random or dynamic
partition key for payloads. Message payloads are generated
with a template. The configuration also allows setting
arbitrary metadata and topic metadata.
Merge pull request #77 from balabit/feature/kafka

This provides a module to produce logs on an Apache Kafka
modules: Do not count inserted/sent messages as stored ones.

Stored messages are for only queued messages inside syslog-ng.
Merge pull request #79 from talien/f/do-not-count-inserted-messages-as-stored

modules: Do not count inserted/sent messages as stored ones.
monitor-source: Adds a simple readme file
trigger-source: Adds a simple readme file
configure: Reworked common cflags and lib variables for incubator.

Introduced INCUBATOR_LIBS and INCUBATOR_CFLAGS make variables to be able to
link modules more easily, and added convenient INCUBATOR_TEST_LDADD
variable for unit test linking.
Merge pull request #86 from talien/f/make-variables-rework

configure: Reworked common cflags and lib variables for incubator.
Updated README
Merge pull request #85 from fekete-robert/master

Adds simple readme files for monitor-source and trigger-source
modules: update value_pairs_foreach() invocation to match 3.6 prototype

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
modules: add explicit cfg parameter to drivers

syslog-ng 3.6 changed the way drivers may reference the configuration
being parsed. Earlier it used the "configuration" global, now that's gone,
requiring changes in plugins that used the global earlier.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
modules: use stats/stats.h instead of stats.h

As syslog-ng changed this header's location.

Signed-off-by: Balazs Scheidler <bazsi@balabit.hu>
update: Updated modules to be syslog-ng 3.6 compatible
kafka: Updated kafka module to use 3.6 interface.
configure: Now incubator needs at least syslog-ng 3.6
Changed madhouse repo to obs repo
Merge pull request #93 from talien/f/obs-repo

Changed madhouse repo to obs repo