Merge pull request #21 from coolreader18/cfg-if-1.0

Upgrade cfg-if to 1.0

Author: fitzgen

Cargo.toml

@@ -12,5 +12,5 @@ version = "0.1.6"
 travis-ci = { repository = "rustwasm/console_error_panic_hook" }
 
 [dependencies]
-cfg-if = "0.1.6"
+cfg-if = "1.0.0"
 wasm-bindgen = "0.2.37"