Switch off smoke tests by default in IDE

The Maven build now sets a System property smoke.test=true. The tests
are skipped if this is not set, so by default the IDE will not run them.

initializr-web/pom.xml

@@ -136,6 +136,9 @@
 									<goal>test</goal>
 								</goals>
 								<configuration>
+									<systemProperties>
+										<smoke.test>true</smoke.test>
+									</systemProperties>
 									<includes>
 										<include>**/*SmokeTests.java</include>
 									</includes>

initializr-web/src/test/groovy/io/spring/initializr/web/project/ProjectGenerationSmokeTests.groovy

@@ -16,11 +16,15 @@
 
 package io.spring.initializr.web.project
 
+import static org.junit.Assert.assertEquals
+import static org.junit.Assert.assertTrue
 import geb.Browser
 import io.spring.initializr.test.generator.ProjectAssert
 import io.spring.initializr.web.AbstractInitializrControllerIntegrationTests
 import io.spring.initializr.web.project.test.HomePage
+
 import org.junit.After
+import org.junit.Assume
 import org.junit.Before
 import org.junit.Test
 import org.openqa.selenium.Keys
@@ -28,12 +32,8 @@ import org.openqa.selenium.WebDriver
 import org.openqa.selenium.firefox.FirefoxDriver
 import org.openqa.selenium.firefox.FirefoxProfile
 import org.openqa.selenium.interactions.Actions
-
 import org.springframework.test.context.ActiveProfiles
 
-import static org.junit.Assert.assertEquals
-import static org.junit.Assert.assertTrue
-
 /**
  *
  * @author Stephane Nicoll
@@ -50,6 +50,7 @@ class ProjectGenerationSmokeTests extends AbstractInitializrControllerIntegratio
 
 	@Before
 	void setup() {
+		Assume.assumeTrue("Not in smoke test (System property smoke.test not set)", Boolean.getBoolean("smoke.test"))
 		downloadDir = folder.newFolder()
 		FirefoxProfile fxProfile = new FirefoxProfile();