open connection errors

[sevaorlov]

These open connection errors can't be catched,
https://github.com/NicosKaralis/pushmeup/blob/master/lib/pushmeup/apns/core.rb#L100
https://github.com/NicosKaralis/pushmeup/blob/master/lib/pushmeup/apns/core.rb#L101

because they are rescued and new error occure on closing @ssl, because @ssl is nil
https://github.com/NicosKaralis/pushmeup/blob/master/lib/pushmeup/apns/core.rb#L83

[perky123]

Did you resolve it ?
I have the same problem with you.

[sevaorlov]

@perky123, no, I didn't fix that