Add page tile jitter demo (Resolves #36) (#38)

Author: matthew-carroll

.run/Image tiles (debug).run.xml

@@ -0,0 +1,6 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Image tiles (debug)" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="filePath" value="$PROJECT_DIR$/example/lib/pages_with_tiled_images/main_page_list_images_inspector.dart" />
+    <method v="2" />
+  </configuration>
+</component>

.run/Image tiles (release).run.xml

@@ -0,0 +1,7 @@
+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Image tiles (release)" type="FlutterRunConfigurationType" factoryName="Flutter">
+    <option name="additionalArgs" value="--release" />
+    <option name="filePath" value="$PROJECT_DIR$/example/lib/pages_with_tiled_images/main_page_list_images_inspector.dart" />
+    <method v="2" />
+  </configuration>
+</component>

example/android/build.gradle

@@ -26,6 +26,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }