Release 0.15.0

[tomhoule]

• Support for deprecated directive on InputValue fields (feat: Adding deprecation fields to InputValue #553)
• Support for custom variable and response types (Add support for custom variable and response types #536)
• Allow using #[derive(GraphQLQuery)] without depending on serde directly (Allow using #[derive(GraphQLQuery)] without depending on serde #487)
• CLI option for extern enums (Upgrade Syn and add cli option for extern enums #520)
• Support deserializing IDs from integers or strings (codegen: enable ids to be deserialized from strings or integers #476)
• Introspection schema now includes oneOf and specifiedByUrl (extend introspection schema to include oneOf and specifiedByURL #501)
• Update reqwest to 0.12 (Update reqwest #499)
• Fix required ID deserialization (codegen: fix required ID deserialization #523)
• Fix skip_serializing_none for root level variables (refs #439. Fix skip_serializing_none for root level variables #485)
• Use consistent reference to graphql_client crate in codegen (fix: Use consistent reference to graphql_client crate in codegen #484)
• Fix multiple operations example in README (doc: fix multiple operations example in readme #497)

[emilbonnek]

@tomhoule
I had a problem with one of my mutations when upgrading to 0.15.0. I wrote about it in #523.