Adding Matrix library
Use setImmutable to make Kryo copy faster
Merge branch 'release/0.7.3' into develop
Fixes for scald.rb on linux/ruby 1.9
Set travis to JDK6
Merge pull request #138 from johnynek/travisjdk6

Set travis to JDK6
Merge pull request #137 from johnynek/scald-linux-fixes

Fixes for scald.rb on linux/ruby 1.9
Merge pull request #135 from johnynek/make-serializers-immut

Use setImmutable to make Kryo copy faster
Merge pull request #140 from xianxu/master

Adds side-effect syntax: using, to prepare and release state on the mappers.
Refactoring ensureUniqueFields and other small fixes
added default serializer for HashMap
Merge pull request #141 from mikegagnon/develop

added default serializer for HashMap
Modified build.sbt to run assembly without testing.
Adding first Matrix.scala tutorial.
Multiple SequenceFiles paths

Added case class to handle multiple input of sequence files.
Please note: If someone would like to have multiple inputs of some other scheme, he would need to implement the same exact line for the other schemes.
We found no better way to do it without refactoring all the input schemes. Also, that was the way suggested by Oscar.
make null source work in local/test mode.
Merge pull request #143 from david206/develop

Multiple SequenceFiles paths
Merge pull request #144 from xianxu/develop

make null source work in local/test mode.
add serializer for Symbol
Merge pull request #145 from mikegagnon/develop

add serializer for Symbol