for ruby 2.x & Rails 4.x

[hiphapis]

• device.rb => remove attr_accessible
• gcm_migrations_generator.rb => remove extend & add next_migration_number

[hiphapis]

@dondeng ok. Thanks~ ;)

[kaosf]

A deplication warning occurs for me.

How do you guys think about my changes for it? kaosf@7c53b17

I have no idea why join is used there. So I'm not confident about my changes.

[kaosf]

I've added .readonly(false) at the tail of the default argument of send_notifications. It is necessary.

kaosf@596a813

[aledelsur]

Hi, I can't generate the gcm_migration because of the attr_accessible in the model Device.rb. I include this file in my project: lib/gcm_on_rails/app/models/gcm/device.rb so the attr_accessible line is not anymore. Did you guys faced with this problem?

I'm with rails 4.0.0 and ruby 2.0

Thanks!