Fixes #135

Adds a table with proposed actions in the dashboard. The user can mark
an action as executed.

app/controllers/proposals_dashboard_controller.rb

@@ -4,7 +4,7 @@
 class ProposalsDashboardController < ApplicationController
   before_action :authenticate_user!
 
-  helper_method :proposal
+  helper_method :proposal, :proposed_actions
   respond_to :html
   layout 'proposals_dashboard'
 
@@ -19,9 +19,23 @@ class ProposalsDashboardController < ApplicationController
     redirect_to proposal_dashboard_index_path(proposal), notice: t('proposals.notice.published')
   end
 
+  def execute
+    authorize! :dashboard, proposal
+    ProposalExecutedDashboardAction.create(proposal: proposal, proposal_dashboard_action: proposal_dashboard_action, executed_at: Time.now)
+    redirect_to proposal_dashboard_index_path(proposal.to_param)
+  end
+
   private
 
+  def proposal_dashboard_action
+    @proposal_dashboard_action ||= ProposalDashboardAction.find(params[:id])
+  end
+
   def proposal
     @proposal ||= Proposal.find(params[:proposal_id])
   end
+
+  def proposed_actions
+    @proposed_actions ||= ProposalDashboardAction.proposed_actions.active_for(proposal)
+  end
 end