pinning npm in travis

.travis.yml

@@ -9,8 +9,8 @@ node_js:
   - "0.10"
   - "0.8"
 before_install:
-  - "npm install -g npm@next"
-  - "npm install -g mocha"
+  - "npm install -g npm@4.3.0"
+  - "npm install -g mocha@2.x voc"
   - "npm install codepage"
   - "npm install blanket"
   - "npm install coveralls mocha-lcov-reporter"

demo/browser.flow.js

@@ -3,7 +3,6 @@
 /*:: declare var ADLER32: ADLER32Module; */
 var X = ADLER32;
 
-// $FlowIgnore
 function console_log(/*:: ...args:Array<any> */) { if(typeof console !== 'undefined') console.log.apply(console, [].slice.call(arguments)); }
 
 function lpad(s/*:string*/, len/*:number*/, chr/*:?string*/)/*:string*/{