fix(smartcli): tighten command parsing and error handling while updating build and package configuration

ts/smartcli.classes.smartcli.ts

@@ -18,7 +18,7 @@ export class Smartcli {
    */
   public parseCompleted = plugins.smartpromise.defer<any>();
 
-  public version: string;
+  public version?: string;
 
   /**
    * map of all Trigger/Observable objects to keep track
@@ -65,6 +65,9 @@ export class Smartcli {
    */
   public triggerCommand(commandNameArg: string, argvObject: any) {
     const triggerSubject = this.getCommandSubject(commandNameArg);
+    if (!triggerSubject) {
+      throw new Error(`No smartcli command registered for ${commandNameArg}`);
+    }
     triggerSubject.next(argvObject);
     return triggerSubject;
   }