Update datetime and version on copy

[psyhtest]

Currently CK copy creates a new UID and updates the name e.g.:

anton@localhost ~/CK/reproduce-carp-project/demo $ ck cp reproduce-carp-project:demo:explore-hog-lws reproduce-carp-project:demo:explore-new-hog-lws
Entry demo:explore-hog-lws was successfully copied!
anton@localhost ~/CK/reproduce-carp-project/demo $ diff explore-{,new-}hog-lws/.cm/info.json
2c2
<   "backup_data_uid": "44bb91f7f0d759da", 

---
>   "backup_data_uid": "8517804c4aefa229", 
19c19
<   "data_name": "explore-hog-worksize"

---
>   "data_name": "explore-new-hog-lws"

However, it's a great opportunity to update the "datetime" and "version" fields too:

    "iso_datetime": "2015-06-09T16:30:40.498000", 
    "license": "See CK LICENSE.txt for licensing details", 
    "version": [
      "1", 
      "2", 
      "0605"
    ]

[gfursin]

I fixed that. Can you please check it? Thanks!

[ctuning]

It should be solved now so I close this ticket!