package.json: sorted dependencies alphabetically
package.json: sorted dependencies alphabetically

When npm saves packages.json, it sorts the dependencies alphabetically. This
change reorders them.

Its aim, togheter with the next ones, is to have a diff that is inspectable.
Moreover, the mutation of package.json by installDeps.sh will be disabled with
a future change.

cloudfoundry-community/etherpad-lite-cf,cloudfoundry-community/etherpad-lite-cf,University-of-Potsdam-MM/etherpad-lite,University-of-Potsdam-MM/etherpad-lite,ether/etherpad-lite,aptivate/etherpad-lite,storytouch/etherpad-lite,lpagliari/etherpad-lite,lpagliari/etherpad-lite,storytouch/etherpad-lite,ether/etherpad-lite,cloudfoundry-community/etherpad-lite-cf,storytouch/etherpad-lite,aptivate/etherpad-lite,lpagliari/etherpad-lite,ether/etherpad-lite,joequant/etherpad-lite,University-of-Potsdam-MM/etherpad-lite,joequant/etherpad-lite,aptivate/etherpad-lite,joequant/etherpad-lite,aptivate/etherpad-lite,joequant/etherpad-lite,lpagliari/etherpad-lite,University-of-Potsdam-MM/etherpad-lite,cloudfoundry-community/etherpad-lite-cf