houndci fixes

app/models/conference.rb

@@ -45,7 +45,7 @@ class Conference < ActiveRecord::Base
   accepts_nested_attributes_for :venue
   accepts_nested_attributes_for :dietary_choices, :allow_destroy => true
   accepts_nested_attributes_for :supporter_levels, :allow_destroy => true
-  accepts_nested_attributes_for :sponsorship_levels, :allow_destroy => true
+  accepts_nested_attributes_for :sponsorship_levels, allow_destroy: true
   accepts_nested_attributes_for :event_types, :allow_destroy => true
   accepts_nested_attributes_for :email_settings
   accepts_nested_attributes_for :questions, :allow_destroy => true

app/models/organization.rb

@@ -2,15 +2,13 @@ class Organization < ActiveRecord::Base
   attr_accessible :title, :photo, :email_id, :description, :website_url
   has_many :sponsorship_registrations, dependent: :destroy
   has_attached_file :photo,
-                    :styles => {:thumb => "100x100>", :large => "300x300>" }
+                    styles: { thumb: '100x100>', large: '300x300>' }
 
   validates_attachment_content_type :photo,
-                                    :content_type => [/jpg/, /jpeg/, /png/, /gif/],
-                                    :size => { :in => 0..500.kilobytes }
+                                    content_type: [/jpg/, /jpeg/, /png/, /gif/],
+                                    size: { :in => 0..500.kilobytes }
   validates_presence_of :title,
                         :email_id,
                         :website_url
   validates_uniqueness_of :email_id
-
-
 end

app/models/sponsorship_registration.rb

@@ -1,5 +1,5 @@
 class SponsorshipRegistration < ActiveRecord::Base
-  attr_accessible :name, :email_id, :contact_no, :amount_donated, :method_of_donation, 
+  attr_accessible :name, :email_id, :contact_no, :amount_donated, :method_of_donation,
                   :sponsorship_level_id, :conference_id, :organization_id
   belongs_to :organization
   belongs_to :sponsorship_level