Merge pull request #327 from GuoLunHao/v3_gen_templates

change the project.all.jars.path to default path(./libs/*.jar) in prebuilt templates

Author: Shun Lin

plugins/plugin_generate/bin-templates/cpp-template-default/proj.android/.classpath

@@ -159,15 +159,15 @@
         },
         {
             "from": "cocos/platform/android/java/libs",
-            "to": "cpp-template-binary/proj.android/jars"
+            "to": "cpp-template-binary/proj.android/libs"
         },
         {
             "from": "cocos/platform/android/java/libs",
-            "to": "lua-template-binary/frameworks/runtime-src/proj.android/jars"
+            "to": "lua-template-binary/frameworks/runtime-src/proj.android/libs"
         },
         {
             "from": "cocos/platform/android/java/libs",
-            "to": "js-template-binary/frameworks/runtime-src/proj.android/jars"
+            "to": "js-template-binary/frameworks/runtime-src/proj.android/libs"
         },
         {
             "from": "cocos/2d/",