fix(config): fixes incorrect deprecation notice

In certain scenarios a deprecation warning for czConfig was shown, even if the user had actually
correctly configured commitizen to use the config.commitizen key. This fixes that issue and improves
the warning in the deprecation notice to be more clear that it is specifically the repo (and not the
adapter or the cli) that is having issues.

Closes #50

src/configLoader/getNormalizedConfig.js

@@ -11,16 +11,15 @@ function getNormalizedConfig(config, content) {
     // Use the npm config key, be good citizens
     if(content.config && content.config.commitizen) {
       return content.config.commitizen;
-    } else {
-      
-      // Old method, will be deprecated in 3.0.0
+    } else if(content.czConfig)  { // Old method, will be deprecated in 3.0.0
+
+      // Suppress during test
       if(typeof global.it !== 'function')
       {
-        console.error("\n********\nWARNING: You are using czConfig in your package.json. czConfig will be deprecated in Commitizen 3. \nPlease use this instead:\n{\n  \"config\": {\n    \"commitizen\": {\n      \"path\": \"./path/to/adapter\"\n    }\n  }\n}\nFor more information, see: http://commitizen.github.io/cz-cli/\n********\n"); 
+        console.error("\n********\nWARNING: This repository's package.json is using czConfig. czConfig will be deprecated in Commitizen 3. \nPlease use this instead:\n{\n  \"config\": {\n    \"commitizen\": {\n      \"path\": \"./path/to/adapter\"\n    }\n  }\n}\nFor more information, see: http://commitizen.github.io/cz-cli/\n********\n"); 
       }
       return content.czConfig;
     }
-
   } else {
     // .cz.json or .czrc 
     return content;