Update dependency for pull request #112 build failure.
Add option to prevent gmetad from generating summaries for sFlow VM metrics

This patch adds a new "unsummarized_sflow_vm_metrics" config option to gmetad
to prevent generating summaries for metrics that appears to be sFlow VM metrics.

A metric is determined to be an sFlow VM metric when the metric name contains
character '.' followed by character 'v'.

Ex: xenvm1.vcpu_num is an sFlow VM metric, vnode_cpu_num is not.
if using graphite_path, use the specified source/host/metric template
instead of just the cluster name
clean up metrics with spaces in them like we do for cluster names
mirror case_sensitive_hostnames logic when using graphite_path
Merge pull request #113 from siboulet/master

Add option to prevent gmetad from generating summaries for sFlow VM metrics
Merge pull request #114 from cburroughs/graphite-path-fix

Graphite path fix
Treat GANGLIA_SLOPE_DERIVATIVE as a legal value in Ganglia_metric_set
Add derivative to list of legal values for slope in gmetric help message.
Merge pull request #115 from dcbradley/allow_derivative

Treat GANGLIA_SLOPE_DERIVATIVE as valid
fix #117: gmetric does not return error on send error
Fix Solaris build broken by cpu_steal patch.
Added queries_per_second metric
Merge pull request #118 from brevilo/mysql-qps

Added queries_per_second metric to gmond/mysql module
Make Travis configuration a bit more readable.
Merge branch 'master' of github.com:ganglia/monitor-core
Fix build on OpenBSD, give up CPU steal metric for that OS
note: compiles + works on OpenBSD 5.3
adding openbsd readme
Try to fix dependency issue.
Merge pull request #120 from mvk/master

openbsd build support