Removed caching of an already accepted license

- If there is a license, user has to approve it
- bnc#890968
Changes and version
Merge pull request #77 from kobliha/no-license-confirmation-caching

Removed caching of an already accepted license
just prepare a translation needed for bnc#888566
better help text (bnc#889749)

user can confirm product removal and continue with the product upgrade

- 3.1.41
added a note for translators
Merge pull request #78 from yast/better_help_text

Better help text