Implements #173

Public view for suggested actions as well as resources has been
completelly redesigned.

Private side for this feature has been adapted as well in order to meet
the requirements.

spec/models/proposal_dashboard_action_spec.rb

@@ -7,7 +7,6 @@ describe ProposalDashboardAction do
           description: description,
           day_offset: day_offset,
           required_supports: required_supports,
-          link: link,
           request_to_administrators: request_to_administrators,
           action_type: action_type
   end
@@ -16,7 +15,6 @@ describe ProposalDashboardAction do
   let(:description) { Faker::Lorem.sentence }
   let(:day_offset) { 0 }
   let(:required_supports) { 0 }
-  let(:link) { nil }
   let(:request_to_administrators) { true }
   let(:action_type) { 'resource' }
 
@@ -48,18 +46,6 @@ describe ProposalDashboardAction do
 
       it { should_not be_valid }
     end
-
-    context 'and description is very short' do
-      let(:description) { 'abc' }
-
-      it { should_not be_valid }
-    end
-
-    context 'and description is very long' do
-      let(:description) { 'a' * 256 }
-
-      it { should_not be_valid }
-    end
   end
 
   context 'when validating day_offset' do
@@ -102,32 +88,6 @@ describe ProposalDashboardAction do
     end
   end
 
-  context 'when url is blank' do
-    let(:link) { nil }
-    
-    context 'and no request_to_administrators' do
-      let(:request_to_administrators) { false }
-
-      it { should_not be_valid }
-    end
-
-    context 'and request_to_administrators' do
-      let(:request_to_administrators) { true }
-
-      it { should be_valid }
-    end
-  end
-  
-  context 'when url is not blank' do
-    let(:link) { Faker::Internet.url }
-
-    context 'and no request_to_administrators' do
-      let(:request_to_administrators) { false }
-
-      it { should be_valid }
-    end
-  end
-
   context 'when action type is nil' do
     let(:action_type) { nil }