pom clean-up and plugin version updates

- only use properties for dependencies with multiple artifacts
-- lucene
-- jersey

- updated plugin versions:
-- scala-maven-plugin: 3.1.5
-- maven-compiler-plugin: 3.1
-- maven-surefire-plugin: 2.14.1
-- maven-enforcer-plugin: 1.2
-- maven-install-plugin: 2.4
-- maven-assembly-plugin: 2.4
-- org.vafer: 0.8
normalized file endings

and added * text=auto to .gitattributes
--> no more CRLF trouble (?)
Sanity-check Spotlight model folders.
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.
pom clean-up and plugin version updates

- only use properties for dependencies with multiple artifacts
-- lucene
-- jersey

- updated plugin versions:
-- scala-maven-plugin: 3.1.5
-- maven-compiler-plugin: 3.1
-- maven-surefire-plugin: 2.14.1
-- maven-enforcer-plugin: 1.2
-- maven-install-plugin: 2.4
-- maven-assembly-plugin: 2.4
-- org.vafer: 0.8
add the wiki parser code from pignlp; pre-process wiki data; draft document init assignment code
move files from core module to index module. but bugs(Document not found) appear
add import of Document to object Document.scala and EntityTopicModel.scala;
 bugs still exist.
before rebase from dbpedia
delete unnecessary file
create functions in SpotlightModel.scala for reuse in CreateEntityTopicModel.scala.
merge conflick from git pull