Upgraded APIs: Flink (0.8) and HBase (0.98.x) + profiles

I had to create an hadoop.core.version variable to manage the fact that cloudera has different versions for hadoop-core and hadoop-common..
Since Result is a native Hadoop type (implements Writable) it should be treated as such and serialized with its own logic and not with Avro. Something on Flink's side does not seem to work correctly. I'll have a look at that. Until then, I suggest to put this PR aside.