fixed crash on saving (iOS4)

[ishkawa]

When NSJSONSerialization is not available (iOS4), HTTP body will be assembled by pkt_URLEncodedFormString:. The argument (NSDictionary) may be contain NSNumber, but this method does not transfer the type of it. This leads to crash in [PocketAPIOperation encodeForURL:value].

I avoided this issue by transferring the type.

example of argument

key(NSString): time
value(NSNumber): 1361867614

key(NSString): consumer_key
value(NSString): *****

key(NSString): url
value(NSString): http://www.example.com

key(NSString): access_token
value(NSString): *****

[stevestreza]

I'd like to make this fix a little more resilient. Could you try this branch to see if it fixes your issue?

https://github.com/Pocket/Pocket-ObjC-SDK/tree/fix/4

[maicki]

Fixed in 1.0.3