Add build.gradle samples and docs for deployable WAR

Fixes gh-518

spring-boot-samples/spring-boot-sample-web-static/build.gradle

@@ -0,0 +1,43 @@
+buildscript {
+	ext {
+		springBootVersion = '1.0.0.BUILD-SNAPSHOT'
+	}
+	repositories {
+		mavenLocal()
+		maven { url "http://repo.spring.io/libs-snapshot" }
+	}
+	dependencies {
+		classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
+	}
+}
+
+
+apply plugin: 'java'
+apply plugin: 'eclipse-wtp'
+apply plugin: 'idea'
+apply plugin: 'spring-boot'
+apply plugin: 'war'
+
+mainClassName = "sample.ui.SampleWebStaticApplication"
+
+war {
+	baseName = 'spring-boot-sample-web-static'
+	version =  '0.5.0'
+}
+
+repositories {
+	mavenCentral()
+	maven { url "http://repo.spring.io/libs-snapshot" }
+}
+
+configurations {
+    providedRuntime
+}
+
+dependencies {
+	compile("org.springframework.boot:spring-boot-starter-web")
+    providedRuntime("org.springframework.boot:spring-boot-starter-tomcat")
+	testCompile("org.springframework.boot:spring-boot-starter-test")
+}
+
+task wrapper(type: Wrapper) { gradleVersion = '1.6' }

spring-boot-samples/spring-boot-sample-web-ui/build.gradle

@@ -22,7 +22,7 @@ apply plugin: 'spring-boot'
 mainClassName = "sample.ui.SampleWebUiApplication"
 
 jar {
-	baseName = 'spring-boot-sample-simple'
+	baseName = 'spring-boot-sample-web-ui'
 	version =  '0.5.0'
 }