Fixed [Abort] button handling in Disks Activation dialog

- bnc#893281
Changes and version
Merge pull request #233 from kobliha/fix-abort-button-behavior-in-disks-activation

Fixed [Abort] button handling in Disks Activation dialog
Setting data for &product; macro ASAP

- bnc#886608: Yast shows product name in helps
- this change makes Yast to show the current base-product name
  instead of a fallback one
Changes and version
Merge pull request #234 from kobliha/set-product-name-early

Setting data for &product; macro
Enable remote access on VNC installations

 * Will fix bnc#893501 as soon as bnc#893965 is fixed (verified with the fix
   to bnc#893965 available at https://github.com/yast/yast-yast2/pull/289)
 * Adds new string to i18n "Enabling remote administration"
Version, dependencies and changelog updates
Merge pull request #235 from ancorgs/enable_vnc

Enable remote access on VNC installations
Use a more flexible rubygem requirement syntax (bnc#895069)

https://en.opensuse.org/openSUSE:Packaging_Ruby#Format_of_automatically_generated_Provides:_headers
Merge pull request #236 from yast/rubygem-requires

Use a more flexible rubygem requirement syntax (bnc#895069)