Fixes #100

Updated README with gear syntax to run the examples. Some of the examples (SequenceFileIO and KafkaWordCount) need README's or an update to this README because it's not clear how to run them. 
It looks like SequenceFileIO fails using some dummy arguments due to ClassNotFoundException 
Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.conf.Configuration

Gear could resolve this issue by launching a process using extraClassPath in order for SequenceFileIO to submit the computation to the Master. This is less than ideal, a better solution might be for SequenceFileIO to delay parsing the hadoop Configuration (using hadoop) until it's used either within the AppMaster or the Executors. It doesn't look like KafkaWordCount has this problem - at least it looks like the computation is successfully submitted but fails because there is no kafka server running.