SparkContext

[Pat Ferrel]

For purposes outside the DSL it seems we need to wrap the SparkContext with 
something like a MahoutContext. The current sparkBindings object looks pretty 
DSL specific. It sets some kyro properties but these need to be accessible to 
code outside the DSL. I’ve been creating a raw SparkContext and passing around 
the ubiquitous “sc”, which works but is this the way we should be doing this?