prometheus/prometheus — pull request #65 by matttproud (2013-02-08 12:10:01+00:00)
Title: Create initial Metric fingerprinter.

The old system relies off of super-careful notion that the serialized
form of a Protocol Buffer should be used for fingerprint formulation.
Of course this is both wrong and inefficient. This commit breaks
ground for swapping to a pure attribute-oriented digest.