Make baking a plugin more user friendly.

Changed the text when the plugin already exists to indicate that the task stops
intentionally.

If there are folder errors - report them in the cli.

Choose the last plugin path by default

Modify the app's bootstrap file if it's not being (obviously) loaded already.
This means it is now possible to do:

    Console/cake bake plugin MyPlugin
    Console/cake bake model MyPlugin.MyModel

Previously the above would result in an error (which only if you know), you'd
fix by editing your Config/bootstrap.php file by hand before retrying to bake
your model.

lib/Cake/Console/Command/Task/PluginTask.php

@@ -53,8 +53,9 @@ class PluginTask extends AppShell {
 			$plugin = Inflector::camelize($this->args[0]);
 			$pluginPath = $this->_pluginPath($plugin);
 			if (is_dir($pluginPath)) {
-				$this->out(__d('cake_console', 'Plugin: %s', $plugin));
+				$this->out(__d('cake_console', 'Plugin: %s already exists, no action taken', $plugin));
 				$this->out(__d('cake_console', 'Path: %s', $pluginPath));
+				return false;
 			} else {
 				$this->_interactive($plugin);
 			}
@@ -127,6 +128,9 @@ class PluginTask extends AppShell {
 
 			$errors = $Folder->errors();
 			if (!empty($errors)) {
+				foreach ($errors as $message) {
+					$this->error($message);
+				}
 				return false;
 			}
 
@@ -144,8 +148,17 @@ class PluginTask extends AppShell {
 			$out .= "}\n\n";
 			$this->createFile($this->path . $plugin . DS . 'Model' . DS . $modelFileName, $out);
 
+			$bootstrap = new File(APP . 'Config' . DS . 'bootstrap.php', false);
+			$contents = $bootstrap->read();
+			if (!preg_match("@\n\s*CakePlugin::loadAll@", $contents)) {
+				$bootstrap->append("CakePlugin::load('$plugin', array('bootstrap' => false, 'routes' => false));");
+				$this->out('', 1, Shell::VERBOSE);
+				$this->out(__d('cake_dev', '%s modified', APP . 'Config' . DS . 'bootstrap.php', 1, Shell::VERBOSE));
+			}
+
 			$this->hr();
 			$this->out(__d('cake_console', '<success>Created:</success> %s in %s', $plugin, $this->path . $plugin), 2);
+
 		}
 
 		return true;
@@ -170,7 +183,7 @@ class PluginTask extends AppShell {
 				$this->out($i + 1 . '. ' . $option);
 			}
 			$prompt = __d('cake_console', 'Choose a plugin path from the paths above.');
-			$choice = $this->in($prompt);
+			$choice = $this->in($prompt, null, 1);
 			if (intval($choice) > 0 && intval($choice) <= $max) {
 				$valid = true;
 			}