Merge pull request #1904 from MetaMask/web3-depreciation

Web3 depreciation warning

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Current Master
 
+- Added a deprecation warning for web3 https://github.com/ethereum/mist/releases/tag/v0.9.0
+
 ## 3.9.6 2017-8-09
 
 - Replace account screen with an account drop-down menu.

app/scripts/lib/auto-reload.js

@@ -5,7 +5,10 @@ function setupDappAutoReload (web3, observable) {
   global.web3 = new Proxy(web3, {
     get: (_web3, name) => {
       // get the time of use
-      if (name !== '_used') _web3._used = Date.now()
+      if (name !== '_used') {
+        console.warn('MetaMask: web3 will be deprecated in the near future in favor of the ethereumProvider \nhttps://github.com/ethereum/mist/releases/tag/v0.9.0')
+        _web3._used = Date.now()
+      }
       return _web3[name]
     },
     set: (_web3, name, value) => {