Merge pull request #3 from n-witt/master

citeproc-js integration
Merge pull request #7 from n-witt/master

latest enhancements
Merge branch 'dev'
Merge branch 'dev'
[feature] resultslist now shows creator and year

If these information are not available others like provider and language
are provided.
[feature] references link to citations

The references in the text (i.e. the [x] things) are wraped by an a-tag
in order to link to the citation at the bottom of the text.