[Git Config] Change sbt config files

Going from simple config.sbt to a more complete set of scala property
files
Playing around with JDBC connector

Probably will get rid of this once I go to the cluster
Run queries on Hadoop cluster

Creation of set of files to access logs in Hadoop. It has 2 parts: the
first part addresses how to go from (compressed) text files to Parquet
files ('SourcesExporter'); the second ('DataExplorer') reads those
Parquet files, creates temporal tables on Hadoop, and processes them.
[Data Explorer] Changed imports to make it easier to copy-paste in spark-shell
Extension of Util and Common stuff
Unit tests: the beginning
Merge pull request #1 from ldacosta/luis-populateStructWithResults

Luis populate struct with results