added gradle wrapper jar

.gitignore

@@ -6,12 +6,6 @@
 # Ignore Gradle GUI config
 gradle-app.setting
 
-# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
-!gradle-wrapper.jar
-
-# Avoid ignore Gradle wrapper properties
-!gradle-wrapper.properties
-
 # Cache of project
 .gradletasknamecache