Update README.md

Normalizing the README files to follow the same structure.
Update README.md

Normalizing the structure of the README file; updating with the same descriptive text as in the wiki; normalization of use of "JANUS" over "janus" (when not used as a file name).
Merge pull request #1 from hlflanagan/patch-1

Update README.md
Merge pull request #2 from hlflanagan/patch-2

Update README.md
Corrected cache dirs
Updated janus
Removed currently unused script
Metadata should not be removed from since it is referenced from config
Updated janus
Updated janus
Merge remote-tracking branch 'origin/master' into develop
Removed duplicate EPPN attribute from deprecated list (which is not deprecated, probably a copy&paste error)
Merge branch 'develop' into feature/rest-api

* develop:
  Removed duplicate EPPN attribute from deprecated list (which is not deprecated, probably a copy&paste error)
  Updated janus
  Updated janus
  Metadata should not be removed from since it is referenced from config
  Removed currently unused script
  Updated janus
  Corrected cache dirs
  Update README.md
  Update README.md

Conflicts:
	composer.lock