prepare for capnp-v0.15.1 release

Author: dwrensha

capnp/CHANGELOG.md

@@ -1,3 +1,10 @@
+## v0.15.1
+- Add `rust-version` field in Cargo.toml, for better error messages when somone uses and old rustc.
+- Add `is_empty()` methods.
+- Deprecate `MessageSize::plus_eq` in favor of `AddAssign`.
+- Add some `Default` impls.
+- Lots of linting and formatting changes that should not have an observeable effect.
+
 ## v0.15.0
 - Move HasStructSize::struct_size() into a constant HasStructSize::STRUCT_SIZE.
 - Move HasTypeId::type_id() into a constant HasTypeId::TYPE_ID.

capnp/Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "capnp"
-version = "0.15.0"
+version = "0.15.1"
 authors = [ "David Renshaw <[email protected]>" ]
 license = "MIT"
 description = "runtime library for Cap'n Proto data encoding"