added metric_resolved target_var and more debug

- added metric_resolved target_var
- added resolved name function for metric_resolved
- added additional config file debug statments
- updated cluster latency/ping example to use aliasByMetric
added link to examples dir and metric_resolved target var
version 0.1.2
prevent resolve_metric flag from leaking into grah url
updated ping graphs in examples

- may require patch. if "LineGraph instance has no attribute 'yTop'"
  error is encountered, see:
  https://github.com/graphite-project/graphite-web/pull/70
corrected invocation. linked to latest tools docs