fix(@embark/core): expect `afterDeploy` hook on contracts config environment

In d3f6b43986 we ensured that Embark automatically
expands `0x0` address to full zero addresses in order to stay backward compatible
with existing projects that made use of `0x0`, even after we've upgraded web3,
which doesn't allow that syntax anymore.

Turns out however, that the address expansion for `afterDeploy` hook was
done in the wrong place. This was due to a bug in our documentation that has been
fixed in 66a5bec46d

src/lib/core/config.js

@@ -341,10 +341,10 @@ Config.prototype.loadContractsConfigFile = function() {
     }
   });
 
-  const afterDeploy = newContractsConfig.contracts.afterDeploy;
+  const afterDeploy = newContractsConfig.afterDeploy;
 
   if (Array.isArray(afterDeploy)) {
-    newContractsConfig.contracts.afterDeploy = afterDeploy.map(replaceZeroAddressShorthand);
+    newContractsConfig.afterDeploy = afterDeploy.map(replaceZeroAddressShorthand);
   }
 
   if (!deepEqual(newContractsConfig, this.contractsConfig)) {

src/test/config.js

@@ -145,12 +145,12 @@ describe('embark.Config', function () {
             "onDeploy": [
               "SimpleStorage.methods.changeAddress('0x0000000000000000000000000000000000000000')"
             ]
+          }
         },
         "afterDeploy": [
           "SimpleStorage.methods.changeAddress('0x0000000000000000000000000000000000000000')",
           "SimpleStorage.methods.changeAddress('$SomeToken')"
         ]
-        }
       };
       let zeroAddressconfig = new Config({
         env: 'zeroaddress',

src/test/test1/config/contracts.json

@@ -21,12 +21,12 @@
         "onDeploy": [
           "SimpleStorage.methods.changeAddress('0x0')"
         ]
+      }
     },
     "afterDeploy": [
       "SimpleStorage.methods.changeAddress('0x0')",
       "SimpleStorage.methods.changeAddress('$SomeToken')"
     ]
-    }
   },
   "myenv": {
     "gas": "400 Kwei",