Add AppBootVersion to 'app register' shell/client

spring-cloud-dataflow-core/src/main/java/org/springframework/cloud/dataflow/core/AppBootSchemaVersion.java

@@ -29,16 +29,18 @@
 public enum AppBootSchemaVersion {
 
 	BOOT2("2"),
-	BOOT3( "3");
+	BOOT3("3");
 
 	private String bootVersion;
 
 	AppBootSchemaVersion(String bootVersion) {
 		this.bootVersion = bootVersion;
 	}
+
 	public static AppBootSchemaVersion defaultVersion() {
 		return BOOT2;
 	}
+
 	public static AppBootSchemaVersion fromBootVersion(String bootVersion) {
 		return Arrays.stream(AppBootSchemaVersion.values())
 				.filter((bv) -> bv.bootVersion.equals(bootVersion))

spring-cloud-dataflow-registry/src/main/java/org/springframework/cloud/dataflow/registry/service/DefaultAppRegistryService.java

@@ -399,7 +399,7 @@ public List<AppRegistration> importAll(boolean overwrite, Resource... resources)
 			String[] typeName = lineSplit[0].split("\\.");
 			if (typeName.length < 2 || typeName.length > 3) {
 				throw new IllegalArgumentException("Invalid format for app key '" + lineSplit[0]
-						+ "'in file. Must be <type>.<name> or <type>.<name>.metadata or <type>.<name>.bootVersion");
+						+ "'in file. Must be <type>.<name> or <type>.<name>.metadata");
 			}
 			String type = typeName[0].trim();
 			String name = typeName[1].trim();

spring-cloud-dataflow-server-core/src/main/java/org/springframework/cloud/dataflow/server/controller/AppRegistryController.java

@@ -259,7 +259,7 @@ public void register(
 	public void register(
 			@PathVariable("type") ApplicationType type,
 			@PathVariable("name") String name,
-			@RequestParam(name = "boot-version", required = false) AppBootSchemaVersion bootVersion,
+			@RequestParam(name = "bootVersion", required = false) AppBootSchemaVersion bootVersion,
 			@RequestParam("uri") String uri,
 			@RequestParam(name = "metadata-uri", required = false) String metadataUri,
 			@RequestParam(value = "force", defaultValue = "false") boolean force) {