Restructure samples

samples/java/java-rest/build.gradle

@@ -0,0 +1,23 @@
+apply from: JAVA_GRADLE
+apply from: TOMCAT_7_GRADLE
+apply from: SAMPLE_GRADLE
+
+dependencies {
+	compile(project(':spring-session-data-redis')) {
+		exclude module: 'jedis'
+	}
+	compile "biz.paluch.redis:lettuce:$lettuceVersion",
+			"org.springframework:spring-webmvc:$springVersion",
+			"org.springframework.security:spring-security-config:$springSecurityVersion",
+			"org.springframework.security:spring-security-web:$springSecurityVersion",
+			"com.fasterxml.jackson.core:jackson-databind:$jacksonVersion",
+			jstlDependencies
+
+	providedCompile "javax.servlet:javax.servlet-api:$servletApiVersion"
+
+	testCompile "junit:junit:$junitVersion",
+			"org.springframework.security:spring-security-test:$springSecurityVersion",
+			"org.assertj:assertj-core:$assertjVersion",
+			"org.springframework:spring-test:$springVersion",
+			"commons-codec:commons-codec:1.6"
+}