Added the ability to embed a source within the metric name using the format 'source_name/metric_name'.  The source parsing logic and all metric name sanitizing has been moved into the addMeasure function.
Update docs for 'source' configuration parameter to describe behavior when per-metric source values are provided.
Allow the API host/port/path to be specified in configuration files.
Update documentation for api and apiPath config
Merge pull request #1 from mjr5749/master

Merge per-metric source patch.