added some doc on the counters+heartbeat functionality
trying to run the PersistSpec sequentially
removed nicta/release as a resolver
fixed the concurrent execution of processes on the same DList
This fix required to change the implementation of the parent/child relationship and store it as an attribute instead of using the members of the Attributable trait
I also changed the implementation of the SeqSource to use the id of the DataSource instead of an incremented one and I'm using the default xstream serialization instead of a custom Array[Byte]
removed some unnecessary imports which fail the CDH3 build
removed the reset method on the configuration
this method was only used to test the 'override' functionality of Text files and checkpoints and is not absolutely necessary to test those
fixed a failing test on the cluster

it was failing because a first mscr job was creating a BSxxxx class which was still referenced by the HadoopExecutionMode serialised for a second job but this class
was missing in the second job. The fix was to remove the attribute usage in the HadoopExecutionMode which is not useful anyway
extended the input format for text sources to accept any FileInputFormat[LongWritable, Text]
avoiding the serialisation of some variables
removed a spurious warning for task counters
using specs2-2.0-RC1
using specs2-2.0-RC1
Setting version to 0.7.0-RC1-cdh4
added license headers where missing
updated the README file
starting 0.7.0-RC2
fixed the README title
fixed the index and readme files
fixed the index page and readme
Update example build files