Fix small bug in Stats where custom groups for counters were ignored.
Merge pull request #866 from daisyzhou/develop

Fix small bug in Stats where custom groups for counters were ignored.
Merge remote-tracking branch 'upstream/develop' into develop
Now able to pass --hdfs or --local, and also hadoop params such as "-D foo=bar"
Updating to ignore warnings for passing params that the MainGenericRunner doesn't care about (such as --local)
Update scald to more robustly look for scala lib jars
Fix whitespace per Ian's comments
Merge pull request #867 from twitter/jco/fix_travix_via_scald

Update scald to more robustly look for scala lib jars
Added implementation of PartitionSource with tests. Notes:

* For Cascading documentation on PartitionTaps, see: http://docs.cascading.org/cascading/2.5/userguide/html/ch08s07.html
* Implementation is very similar to existing TemplateSource
* User can pass in delimiter + pathFields, TemplateSource-style, OR a custom Partition. I've written tests for both
* Unlike a TemplateTap, a PartitionTap can be read from as well as written to. I haven't implemented this
* I wanted to add a flag to automatically discard the pathFields from the output tap prior to writing, discussed here: https://groups.google.com/forum/#!topic/cascading-user/w24BMQ6ZG10. Nobody replied so I've removed this functionality for now
Whoops, got path depth wrong. Always 1
Moved into correct folder path
Fix for:
[error] /home/travis/build/twitter/scalding/scalding-core/src/test/scala/com/twitter/scalding/PartitionSourceTest.scala:43: not found: value ???
14/05/01 23:31:51 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
[error] def toTuple(partition: String, tupleEntry: TupleEntry): Unit = ???
Added support for user to specify which fields they want to include in their TSV output
Upgraded cascading to 2.5.4, cascading jdbc to 2.5.2
Merge pull request #863 from snowplow/feature/partition-source

Added implementation of PartitionSource with tests
Addressing Jon's comments on PR
Merge pull request #868 from twitter/jco/upgrade_cascading_and_jdbc

Upgrade cascading to 2.5.4, cascading jdbc to 2.5.2
Cleaning up parsing of arguments, and adding better error handling
Using backtick for evaluation for consistency
Merge pull request #865 from sriramkrishnan/scalding-repl

Adding an hdfs mode for the Scalding REPL