Add SafariExtension
Move into subfolder
Add build extension
Adapt README
Even more refinements for the README file
Merge branch 'master' of https://github.com/Erikmitk/spockhub into Erikmitk-master

* 'master' of https://github.com/Erikmitk/spockhub:
  Even more refinements for the README file
  Adapt README
  Add build extension
  Move into subfolder
  Add SafariExtension

Conflicts:
	README.md