added dns server to the configuration
fixed typo in output
filtered curl specific ststistic from the error output

Conflicts:
	rrmonitor.sh
Fixed OS specific sed parameter for extended regex
increased version number for recent changes
merged change from xmpp branch
Merge branch 'master' of github.com:tinned-software/round-robin-monitor into rrdtool

Conflicts:
	rrmonitor.sh