Statsd

- Modularized injest servers, with support for loading multiple servers
- Added configurable tcp injest server
- Added unix socket injest support
- Added tcp repeater functionality
- Added pickle protocol support to graphite backend
- Added configurable IPv6 and TCP support to proxy
- Added telnet admin interface to proxy
- Multiple variable scoping fixes
- Fixes to flush timer to reduce bucket drift
- Fixes to ruby and java example client code
- Dropped support for node v0.8.x
- Fixed dependency issues for modern node versions
- Updated npm hashring dependency to v3.2.0
- Replaced npm node-syslog dependency with modern-syslog v1.1.2

- Fixes to detecting valid packets

- move contributing information into CONTRIBUTING.md
- Updates winser to v0.1.6
- examples: python: added efficiency note
- python: examples: fixed doctests for Python 3
- Standardized debian log locations
- Enhancement: consume logger in graphite and repeater backends
- Enhancement: update backend documentation
- Enhancement: inject logger object into backend
- Send STDOUT and STDERR to the appropriate files

- added cluster proxy
- measure and graph timestamp generation lag
- added median calculation for timers
- support for top percentiles for timers
- drop support for node v0.6.x
- support for setting the process title
- functionality for optionally omitting stats_counts metrics
- improved functionality to delete counters from the management console
- updates to Debian packaging
- added a clojure example client
- cleaned up the Go example client
- increased test coverage
- documentation updates

- added new metric types : sets, gauge deltas, histograms
- added ability to delete idle stats
- added support for configurable namespacing
- added standard Deviation to timers stats (.std)
- added last_flush_time and last_flush_length metrics to graphite backend
- added ipv6 support
- added StatsD repeater backend
- added helper script to decide which timers to sample down
- added Windows service support
- added Scala example
- added support for sampling timers.
- added build testing on node 0.8, 0.9, and 0.10
- fixed broken config file watching.
- fixed for DNS errors from UDP socket
- fixed for TCP client goes away crash.
- removed debugInterval in favor of Console backend debugging
- updated and reorganized Docs
- updated examples scripts
- improved the quality of randomness used for sampling.
- moved config.js to /lib folder to avoid confusion

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- Stop supporting IPv6. StatsD doesn't support it, and it breaks things.
- incr, decr, and gauge now support floating point values.