Fix bug in selling, holding or exchanging stocks after merger

[dheeraj-p]

As a player

I want to hold, sell or exchange my defunct stocks at the end of a merger

So that I may get money, surviving corporation stocks or use defunct corporation stocks later in game

Acceptance Criteria

• Only defunct stock holders should get a chance to hold, sell and exchange stocks
  • Given I am a player and a merger just happened
  • When I am not a defunct stock holder
  • Then I should not see the sell, hold or exchange stocks popup