Standardize Build

The build now uses spring build conventions to simplify the build

Fixes gh-4284

samples/xml/contacts/contacts.gradle

@@ -1,29 +0,0 @@
-// Contacts sample build file
-
-apply from: WAR_SAMPLE_GRADLE
-
-dependencies {
-	providedCompile "javax.servlet:javax.servlet-api:$servletApiVersion"
-
-	compile project(':spring-security-core'),
-			project(':spring-security-acl'),
-			"org.springframework:spring-aop:$springVersion",
-			"org.springframework:spring-beans:$springVersion",
-			"org.springframework:spring-context:$springVersion",
-			"org.springframework:spring-jdbc:$springVersion",
-			"org.springframework:spring-tx:$springVersion",
-			"org.springframework:spring-web:$springVersion",
-			"org.springframework:spring-webmvc:$springVersion"
-
-	runtime project(':spring-security-web'),
-			project(':spring-security-config'),
-			project(':spring-security-taglibs'),
-			"org.springframework:spring-context-support:$springVersion",
-			jstlDependencies,
-			"org.hsqldb:hsqldb:$hsqlVersion",
-			"org.slf4j:jcl-over-slf4j:$slf4jVersion",
-			"ch.qos.logback:logback-classic:$logbackVersion",
-			"net.sf.ehcache:ehcache:$ehcacheVersion"
-
-	integrationTestCompile gebDependencies
-}

samples/xml/contacts/spring-security-samples-xml-contacts.gradle

@@ -0,0 +1,28 @@
+apply plugin: 'io.spring.convention.spring-sample-war'
+
+dependencies {
+	compile project(':spring-security-acl')
+	compile project(':spring-security-core')
+	compile slf4jDependencies
+	compile 'org.springframework:spring-aop'
+	compile 'org.springframework:spring-beans'
+	compile 'org.springframework:spring-context'
+	compile 'org.springframework:spring-jdbc'
+	compile 'org.springframework:spring-tx'
+	compile 'org.springframework:spring-web'
+	compile 'org.springframework:spring-webmvc'
+
+	providedCompile 'javax.servlet:javax.servlet-api'
+
+	runtime project(':spring-security-config')
+	runtime project(':spring-security-taglibs')
+	runtime project(':spring-security-web')
+	runtime jstlDependencies
+	runtime 'ch.qos.logback:logback-classic'
+	runtime 'net.sf.ehcache:ehcache'
+	runtime 'org.hsqldb:hsqldb'
+	runtime 'org.slf4j:jcl-over-slf4j'
+	runtime 'org.springframework:spring-context-support'
+
+	integrationTestCompile gebDependencies
+}