Quiz-Item Details-view (along with Edit-view) Implemented


* Templates created/modified: QuizItem
  - Button labels modified on template (quiz_list.html)
  - Template (quiz_item_details.html) added: Details-view implemented
  
* Template modified: base.html
  - Change in "m"etaStudio label at top-left position in the menu-bar
  
* File modified: org2any.py
  - Removal of unnecessary new lines from exported org-to-html content
  
* Template modified: node_edit_base.html
  - Org-editor integrated to template by using 'include' template tag