Merge commit '66de29a3e3deffa8b3213e9c55544400a18da3ff'

# Conflicts:
#	src/util.rs

Author: wiomoc

Cargo.toml

@@ -13,7 +13,7 @@ license = "MIT"
 name = "ws"
 readme = "README.md"
 repository = "https://github.com/housleyjk/ws-rs"
-version = "0.7.6"
+version = "0.7.7"
 
 [dependencies]
 byteorder = "1.2.1"
@@ -24,7 +24,7 @@ mio = "0.6.14"
 mio-extras = "2.0"
 rand = "0.4.2"
 sha1 = "0.6.0"
-slab = "0.3"
+slab = "0.4"
 url = "1.7.0"
 
 [dependencies.libc]