*: bump to 0.4.2 (#228)

Author: BusyJay

CHANGELOG.md

@@ -1,3 +1,8 @@
+# 0.4.2 - 2019-04-29
+
+- Fix potential two leaders at the same term when transferring leader. (https://github.com/pingcap/raft-rs/pull/225)
+- Support `StatusRef` that doesn't clone. (https://github.com/pingcap/raft-rs/pull/227)
+
 # 0.4.0 - 2018-09-18
 
 - No longer scan the raft log when becoming a leader. (https://github.com/pingcap/raft-rs/pull/100)

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "raft"
-version = "0.4.0"
+version = "0.4.2"
 authors = ["The TiKV Project Developers"]
 license = "Apache-2.0"
 keywords = ["raft", "distributed-systems", "ha"]