Re-add deprecated Pico::getBaseThemeUrl() and AbstractPicoPlugin::__call()

This reverts commits efc4fb5288 and bc816febfc

lib/AbstractPicoPlugin.php

@@ -193,6 +193,30 @@ abstract class AbstractPicoPlugin implements PicoPluginInterface
         return isset($pluginConfig[$configName]) ? $pluginConfig[$configName] : $default;
     }
 
+    /**
+     * Passes all not satisfiable method calls to Pico
+     *
+     * @see PicoPluginInterface::getPico()
+     *
+     * @deprecated 2.1.0
+     *
+     * @param string $methodName name of the method to call
+     * @param array  $params     parameters to pass
+     *
+     * @return mixed return value of the called method
+     */
+    public function __call($methodName, array $params)
+    {
+        if (method_exists($this->getPico(), $methodName)) {
+            return call_user_func_array(array($this->getPico(), $methodName), $params);
+        }
+
+        throw new BadMethodCallException(
+            'Call to undefined method ' . get_class($this->getPico()) . '::' . $methodName . '() '
+            . 'through ' . get_called_class() . '::__call()'
+        );
+    }
+
     /**
      * Enables all plugins which this plugin depends on
      *

lib/Pico.php

@@ -2373,6 +2373,20 @@ class Pico
         return substr($path, $contentDirLength, -$contentExtLength) ?: null;
     }
 
+    /**
+     * Returns the URL of the themes folder of this Pico instance
+     *
+     * @see Pico::getUrlFromPath()
+     *
+     * @deprecated 2.1.0
+     *
+     * @return string
+     */
+    public function getBaseThemeUrl()
+    {
+        return $this->getConfig('themes_url');
+    }
+
     /**
      * Substitutes URL placeholders (e.g. %base_url%)
      *