Added Sqoop import/upload unit test case that running with an in memory db

Specs2 Before and After functionality seems like a dog's breakfast to me, but I'm not sure this is the best way to do it. I think you should be making `endToEndImportTest` extend from `Before`, not the entire `SqoopImportSpec`. I freely admit I am not 100% comfortable with the relevant specs functionality, though, so that might be wrong.