Adding of new entries, renaming of entries

* Added new entries for SPARQL and RDF overview
* Renamed existing SPARQL entry
Changing of citation style

* Changed citation style to output author
Adding of colors, defining of XML list style, comments

* Added color templates
* Defined XML as language for code listings
* Added comment package
Changing of title

* Changed title from template to actual title
Bibliography styles

* Added other bibliography styles to be able to output
  author name as well
Part implementation of chapter

* Began writing SPARQL chapter