update .gitignore for gradle and intellij

.gitignore

@@ -11,9 +11,35 @@
 # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
 hs_err_pid*
 
-# for mac
+# Ignore OS X Desktop Services store
 .DS_Store
+**/.DS_Store
+.tddium*
+**/*~
+
+# intellij 
 .idea
+*.iml
+*.ipr
+*.iws
+**/*.iml
+out/
+.classpath
+**/.classpath
+.project
+**/.project
+.settings/
+**/.settings/
+
+# Gradle
+.gradle/
+**/.gradle/
+**/.gradletasknamecache
+build/
+**/build/
+classes
+
+
 
 # for python virtual env
 .env/