fix issue #21 build fail also updated example code in document
update test_syslog.conf to fix issue 24
code: gcc warning for nscan not used
Merge remote branch 'insop/fix-issue-23'

Conflicts:
	src/rotater.c
bugfix: memory errors when doing zlog_init/zlog_fini multiple times
version: 1.2.9, a bugfix version
version: the real 1.2.9, fix another bug from buf.c when input is longer than buffer size
Merge remote-tracking branch 'upstream/master'