Rename notifications.body to text

app/models/domain.rb

@@ -272,7 +272,7 @@ class Domain < ActiveRecord::Base
 
   def notify_registrar(message_key)
     registrar.notifications.create!(
-      body: "#{I18n.t(message_key)}: #{name}",
+      text: "#{I18n.t(message_key)}: #{name}",
       attached_obj_id: id,
       attached_obj_type: self.class.to_s
     )

app/models/domain_transfer.rb

@@ -74,7 +74,7 @@ class DomainTransfer < ActiveRecord::Base
     old_registrant_code = domain.registrant.code
 
     old_registrar.notifications.create!(
-      body: I18n.t('notifications.texts.domain_transfer',
+      text: I18n.t('notifications.texts.domain_transfer',
                    domain_name: domain.name,
                    old_contacts_codes: old_contacts_codes,
                    old_registrant_code: old_registrant_code),

app/models/epp/domain.rb

@@ -626,7 +626,7 @@ class Epp::Domain < Domain
 
       if dt.pending?
         registrar.notifications.create!(
-          body: I18n.t('transfer_requested'),
+          text: I18n.t('transfer_requested'),
           attached_obj_id: dt.id,
           attached_obj_type: dt.class.to_s
         )
@@ -728,7 +728,7 @@ class Epp::Domain < Domain
       return false unless valid?
 
       registrar.notifications.create!(
-        body: 'Key Relay action completed successfully.',
+        text: 'Key Relay action completed successfully.',
         attached_obj_type: kr.class.to_s,
         attached_obj_id: kr.id
       )

app/models/notification.rb

@@ -6,7 +6,7 @@ class Notification < ActiveRecord::Base
 
   scope :queued, -> { where(queued: true) }
 
-  validates :body, presence: true
+  validates :text, presence: true
 
   def dequeue
     self.queued = false