Bump version to v0.1.5 (#271)

This also bumps:

* tokio-executor to v0.1.2
* tokio-threadpool to v0.1.2
* tokio-timer to v0.2.0

tokio-threadpool/CHANGELOG.md

@@ -1,4 +1,4 @@
-# 0.1.2 (unreleased)
+# 0.1.2 (March 30, 2018)
 
 * Add the ability to specify a custom thread parker.
 

tokio-threadpool/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tokio-threadpool"
-version = "0.1.1"
+version = "0.1.2"
 documentation = "https://docs.rs/tokio-threadpool"
 repository = "https://github.com/tokio-rs/tokio"
 homepage = "https://github.com/tokio-rs/tokio"

tokio-threadpool/src/lib.rs

@@ -1,6 +1,6 @@
 //! A work-stealing based thread pool for executing futures.
 
-#![doc(html_root_url = "https://docs.rs/tokio-threadpool/0.1.1")]
+#![doc(html_root_url = "https://docs.rs/tokio-threadpool/0.1.2")]
 #![deny(warnings, missing_docs, missing_debug_implementations)]
 
 extern crate tokio_executor;