Feature-gates flate2

.gitignore

@@ -2,4 +2,6 @@ target
 Cargo.lock
 
 autobahn/client/*
-autobahn/server/*
+autobahn/server/*
+
+.idea

Cargo.toml

@@ -16,7 +16,7 @@ edition = "2018"
 default = ["tls"]
 tls = ["native-tls"]
 tls-vendored = ["native-tls", "native-tls/vendored"]
-deflate = []
+deflate = ["flate2"]
 
 [dependencies]
 base64 = "0.12.0"
@@ -30,7 +30,12 @@ rand = "0.7.2"
 sha-1 = "0.9"
 url = "2.1.0"
 utf-8 = "0.7.5"
-flate2 = { version = "1.0", features = ["zlib"], default-features = false }
+
+[dependencies.flate2]
+optional = true
+default-features = false
+version = "1.0"
+features = ["zlib"]
 
 [dependencies.native-tls]
 optional = true