WIP Adding starting to add testing for Cass 2.
Updated tests.

 - Removed unused test resources.
 - Additionally updated aeg_json_output files that were incorrect in Aegisthus when using the non-columnar reducer.  We now always use the columnar reducer.
Version bump to 0.3.0-SNAPSHOT
Aegisthus now requires a Java 7 Runtime.
Updated dependencies.

 - Updated the versions of Guava, SLF4J, and Jackson.
 - Removed unused dependencies (we only use the Jackson streaming api)
Major code changes.

 - Removed the non-columnar reducer and all of its input and output formats.
 - The reducer now returns a BytesWriteable which is the bytes for the row id as a key and a RowWritable as a value.  The RowWritable represents a row and all its columns.
 - All outputting and formatting is now done in the OutputFormatter classes.
 - All configuration options are now in Aegisthus.Feature
 - All code in aegisthus-hadoop has how now been consistently formatted for tabs and spacing.
 - All tests are passing when processing Cassandra 1.2.18 or 2.0.10
   sstables.