undo test of postgres9.5 error

.travis.yml

@@ -5,6 +5,7 @@ addons:
     - ubuntu-toolchain-r-test
     packages:
     - g++-4.8
+    -  postgresql: 9.5
 
 before_install:
   # Add custom PPAs from cartodb

app/postgresql/error_handler.js

@@ -18,7 +18,7 @@ ErrorHandler.prototype.getMessage = function() {
     // return conditionToMessage[this.err.code] || this.err.message;
     if (message && 
         (message.match(/statement timeout/) || 
-        message === /RuntimeError: Execution of function interrupted by signal/)
+        message.indexOf('RuntimeError: Execution of function interrupted by signal') > -1)
     ) {
         message = conditionToMessage[pgErrorCodes.conditionToCode.query_canceled];
     }

test/acceptance/app.test.js

@@ -812,11 +812,13 @@ it('GET with callback must return 200 status error even if it is an error', func
                 }
             },
             function(err, res) {
-                var body = JSON.parse(res.body);
-                assert.deepEqual(body.error, [
-                    'You are over platform\'s limits. Please contact us to know more details'
-                ]);
-
+                var error = JSON.parse(res.body);
+                assert.deepEqual(error, {
+                    error: [
+                        'You are over platform\'s limits. Please contact us to know more details'
+                    ]
+                });
+                
                 done();
             });
     });