Distribution module improvements

1) Improving the post installation script file:
             - to download backed-end data during the install process;
             - to config the bin command according the language and port parameters

2) Integrating the module to the main pom

3) Removing unused files
Removing unused directory
Merge pull request #178 from sandroacoelho/distributionPackage

Distribution module improvements
Added baseline disambiguator to Spotlight model eval.
including removing script - (Best packaging practices)
including removing script - (Best packaging practices)
Merge pull request #182 from sandroacoelho/lod2deb

Best packaging practices (Debian Dev Manual)
Removing ScalaJ dependency

- Replacing import scalaj.collection.Imports._ to a native Scala implementation: import scala.collection.JavaConverters._
- Removing ScalaJ from the pom files
- Forcing casting when Java Types is required
  E.g.:
       java.util.Map[String, java.lang.Integer] instead of java.util.Map[String, Int]
Merge pull request #186 from sandroacoelho/byeScalaj

Removing ScalaJ dependency

Fixes #118 by making it obsolete.
Creating a visitor to manage the filters
Removing deprecated class / Adding new filter resources and references
Adding filter parameters

- Endpoint/graph;
- Thresholds.
Using coreferenceResolution parameter to select the corresponding filter
Updated 'Run your own server' with Sandro's Debian package
Reverting changes in SpotlightModel.scala
Moving SparqlExecuter property to Server.java
Using confidenceFilter only when thresholds are available
Renaming spotterThresholds<List> in Server.java to similarityThresholds<List>

This might lead to confusion. The spotter_thresholds.txt in the statistical backend are not the same as the similarityThresholds in the Lucene backend. Eventually, we might add similarityThresholds to the statistical backend, too. They are just a way of estimating confidence. The spotter_thresholds.txt in the statistical backend are weights for scores that go into deciding if a SF is annotated (spotter_weights.txt might actually be a better name for them)
Merge pull request #190 from sandroacoelho/issue183

Issue 183 - Adding filters to the statistical implementation and refactoring.
Merge branch 'master' of https://github.com/dbpedia-spotlight/dbpedia-spotlight into topical