This release brings further work towards the new pants antless infrastructure
and many python and java library improvements from many new contributors.

Some noteworthy changes are highlighted below.

upgrades:
 + scala 2.9.2
 + guava 14.0.1
 + protobuf-2.4.1
 + lucene 4.1.0
 + gson 2.2.2
 + easymock 3.1
 + commons-codec 1.6
 + checkstyle 5.6
 + nailgun 0.9.1
 + spymemcached-2.8.1
 + joda-time-2.1

pants:
 + kill the pants ant backend
 + new metadata goals:
   depmap, dependencies, dependees, list, changed, filter, minimize
 + a plugin to handle thrift code generation using scrooge (supports 2.x and
   3.x series)
 + support for scaladoc gen via the renamed 'doc' goal (was 'javadoc')
 + antlr 3 & 4 support for java codegen
 + support for caliper benchmark targets
 + various *.md's filled out and corrected
 + improved multiplatform pex support: ./pants.multi and ./pants setup command
 + a concurrent junit runner upgrade
 + support for junit tests written in scala or java and marked via @RunWith
 + resources become first class targets
 + support for IDEA 12
 + upgrade jmake to get java 8 classfile support
 + optional support for pants usage logging to a remote service
 + python code coverage support
 + setup.py artifact exporting for python libraries
 + support zip64 for jars
 + eclipse goal configured java formatter fixes

python:
 + a versatile pex utility
 + a new jira library
 + many small imporvements to common.app and common.log
 + http support for common
 + EventMuxer added to common.concurrent to multiplex threading.Events along
   with several other concurrency utilities
 + RingBuffer added to common.collections
 + scribe support for common.log
 + hardening and improvement of common.zookeeper libs
 + a new common.net ssh tunnel helper
 + basic finagle client support

java:
 + a new concurrent junit runner that respects @TestParallel and @TestSerial
 + a much improved /graphview interface
 + many HTTP stack imporvements including a request logger
 + support for /pprof/heap (heapster) and /pprof/profile gperftools compatible
   endpoints
 + several improvements to common.{inject,quantity,stats,zookeeper}
 + glog support for log4j
 + a simple utility to unpack and link pre-compiled native libraries packaged
   in jars
 + added increment and group attribute support to TokenizedCharSequence
 + refactored common.text for performance optimizations and run-time
   configuration support