Finaly fixes Weka dependency

.gitignore

@@ -105,6 +105,9 @@ gradle-app.setting
 
 # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
 !gradle-wrapper.jar
+# Avoid if
+!/libs/*.jar
+!/libs_src/*.jar
 
 # Cache of project
 .gradletasknamecache

build.gradle

@@ -45,6 +45,7 @@ dependencies {
 	// https://mvnrepository.com/artifact/org.apache.commons/commons-math3
 	compile group: 'org.apache.commons', name: 'commons-math3', version: '3.6.1'
 	//compile group: 'nz.ac.waikato.cms.weka', name: 'weka-stable', version: '3.8.0'
+	compile fileTree(include: ['*.jar'], dir: 'libs')
 	
 	testCompile 'junit:junit:4.12'
 }