Enable Style/SpaceAroundOperators Rubocop

Cleared all the offenses for Style/SpaceAroundOperators

Added a description for the Style/SpaceAroundOperators Rubocop.

db/migrate/20141128073306_migrate_data_remove_column_include_cfp_in_splash_add_column_include_cfp.rb

@@ -3,7 +3,7 @@ class MigrateDataRemoveColumnIncludeCfpInSplashAddColumnIncludeCfp < ActiveRecor
     self.table_name = 'conferences'
   end
 
-  class TempCallForPaper< ActiveRecord::Base
+  class TempCallForPaper < ActiveRecord::Base
     self.table_name = 'call_for_papers'
   end
 

db/migrate/20150417050953_add_url_to_commercial.rb

@@ -1,5 +1,5 @@
 class AddUrlToCommercial < ActiveRecord::Migration
-  class TempCommercial< ActiveRecord::Base
+  class TempCommercial < ActiveRecord::Base
     self.table_name = 'commercials'
   end
 

db/migrate/20151018152439_create_programs_table.rb

@@ -1,4 +1,4 @@
-class CreateProgramsTable< ActiveRecord::Migration
+class CreateProgramsTable < ActiveRecord::Migration
   class TempConference < ActiveRecord::Base
     self.table_name = 'conferences'
   end