Merge pull request #38 from awaelchli/master

Fix for downloads, small updates in readme
a bit more testing
Merge branch 'master' of https://github.com/pse-group2/medminersolr

Conflicts:
	lib/tasks/update_wiki/Downloader.rb
updating of updated articles on wikipedia now working
fixed confused files
no longer using locally stored json files.

doesn’t make sense.
successfully tested normalize and a bit refactoring in tests