Move context initializers into subpackage

spring-bootstrap/src/main/java/org/springframework/bootstrap/context/initializer/ConfigFileApplicationContextInitializer.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.bootstrap;
+package org.springframework.bootstrap.context.initializer;
 
 import java.io.IOException;
 import java.util.ArrayList;

spring-bootstrap/src/main/java/org/springframework/bootstrap/context/initializer/EnvironmentDelegateApplicationContextInitializer.java

@@ -13,7 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-package org.springframework.bootstrap;
+package org.springframework.bootstrap.context.initializer;
 
 import java.util.ArrayList;
 import java.util.Collections;

spring-bootstrap/src/main/resources/META-INF/spring.factories

@@ -8,5 +8,5 @@ org.springframework.bootstrap.autoconfigure.web.EmbeddedJettyAutoConfiguration,\
 org.springframework.bootstrap.autoconfigure.web.EmbeddedTomcatAutoConfiguration,\
 org.springframework.bootstrap.autoconfigure.web.WebMvcAutoConfiguration
 org.springframework.context.ApplicationContextInitializer=\
-org.springframework.bootstrap.ConfigFileApplicationContextInitializer,\
-org.springframework.bootstrap.EnvironmentDelegateApplicationContextInitializer
+org.springframework.bootstrap.context.initializer.ConfigFileApplicationContextInitializer,\
+org.springframework.bootstrap.context.initializer.EnvironmentDelegateApplicationContextInitializer