iOS 9 compatibility issues

[neil-oliver]

The following warnings show up when trying to use the SDK with iOS 9:

Method override for the designated initializer of the superclass '-init' not found
on line '@implementation BAAObject'
in BAAObject.m

'CFURLCreateStringByAddingPercentEscapes' is deprecated: first deprecated in iOS 9.0 - Use [NSString stringByAddingPercentEncodingWithAllowedCharacters:] instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent (since each URL component or subcomponent has different rules for what characters are valid).
This occurs twice in BAAClient.h

[funkyboy]

Thanks for reporting. We'll look into it.