add api_users:reset_permissions rake task

Rakefile

@@ -16,3 +16,6 @@ ActiveRecordMigrations.configure do |c|
   c.environment = $environment
 end
 ActiveRecordMigrations.load_tasks
+
+# Load custom tasks from `lib/tasks` if you have any defined
+Dir.glob('lib/tasks/*.rake').each { |r| import r }

lib/tasks/api_users.rake

@@ -0,0 +1,12 @@
+require 'models/api_user'
+
+namespace :api_users do
+  desc "Reset permissions for all users"
+  task :reset_permissions => :environment do
+    ApiUser.all.each { |user|
+      user.send(:set_permissions)
+      user.save
+      puts "Permissions reset for #{user.email}"
+    }
+  end
+end