Add operation for Settings.

This is needed for Provisioning for some versions of EAS.
Since all the code from EasAccountValidator is now converted
to some EasOperation or another, delete that old class.

Also, there were some goofs in provisioning and version
fetching which are now corrected.

Change-Id: I9cd4725ffa2698b1faee9ca497cb508341a4dda3
7 files changed