branch feature/elpa-package created (now 76830e87a16)

[Philip Kaludercic]

zge pushed a change to branch feature/elpa-package.

        at  76830e87a16 Prepare package-vc.el to be published on GNU ELPA

This branch includes the following new commits:

       new  2f74a459d2a Prepare package.el to be published on GNU ELPA
       new  ce044bd9d66 Add a command to revert back to the build-in version of 
package.el
       new  76830e87a16 Prepare package-vc.el to be published on GNU ELPA