GRMustache/src/classes/Services/StandardLibrary/GRMustacheURLLibrary.m:114:22:
warning: 'stringByAddingPercentEscapesUsingEncoding:' is deprecated: first
deprecated in iOS 9.0 - Use -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.
string = [string stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
From @pierlo, when compiling with Xcode 7GM:
This should be easy to fix.