Restructure samples

samples/java/java-redis/build.gradle

@@ -0,0 +1,21 @@
+apply from: JAVA_GRADLE
+apply from: TOMCAT_7_GRADLE
+apply from: SAMPLE_GRADLE
+
+dependencies {
+	compile(project(':spring-session-data-redis')) {
+		exclude module: 'jedis'
+	}
+	compile "org.springframework:spring-web:$springVersion",
+			"biz.paluch.redis:lettuce:$lettuceVersion",
+			"org.webjars:bootstrap:$bootstrapVersion",
+			"org.webjars:webjars-taglib:$webjarsTaglibVersion",
+			jstlDependencies
+
+	providedCompile "javax.servlet:javax.servlet-api:$servletApiVersion"
+
+	testCompile "junit:junit:$junitVersion",
+			"org.assertj:assertj-core:$assertjVersion"
+
+	integrationTestCompile seleniumDependencies
+}