diff --git a/miniflux/vendor/PicoTools/Chrono.php b/miniflux/vendor/PicoTools/Chrono.php
deleted file mode 100644
index 8a65505..0000000
--- a/miniflux/vendor/PicoTools/Chrono.php
+++ /dev/null
@@ -1,100 +0,0 @@
-<?php
-
-/*
- * This file is part of picoTools.
- *
- * (c) Frédéric Guillot http://fredericguillot.com
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace PicoTools;
-
-
-/**
- * Chrono, tool for benchmarking
- * Calculate the duration of your code
- *
- * @author Frédéric Guillot
- */
-class Chrono
-{
-    /**
-     * Chronos values
-     *
-     * @access private
-     * @static
-     * @var array
-     */
-    private static $chronos = array();
-
-
-    /**
-     * Start a chrono
-     *
-     * @access public
-     * @static
-     * @param string $name Chrono name
-     */
-    public static function start($name)
-    {
-        self::$chronos[$name] = array(
-            'start' => microtime(true),
-            'finish' => 0
-        );
-    }
-
-
-    /**
-     * Stop a chrono
-     *
-     * @access public
-     * @static
-     * @param string $name Chrono name
-     */
-    public static function stop($name)
-    {
-        if (! isset(self::$chronos[$name])) {
-
-            throw new \RuntimeException('Chrono not started!');
-        }
-
-        self::$chronos[$name]['finish'] = microtime(true);
-    }
-
-
-    /**
-     * Get a duration of a chrono
-     *
-     * @access public
-     * @static
-     * @return float
-     */
-    public static function duration($name)
-    {
-        if (! isset(self::$chronos[$name])) {
-
-            throw new \RuntimeException('Chrono not started!');
-        }
-
-        return self::$chronos[$name]['finish'] - self::$chronos[$name]['start'];
-    }
-
-
-    /**
-     * Show all durations
-     *
-     * @access public
-     * @static
-     */
-    public static function show()
-    {
-        foreach (self::$chronos as $name => $values) {
-
-            echo $name.' = ';
-            echo round($values['finish'] - $values['start'], 2).'s';
-            echo PHP_EOL;
-        }
-    }
-}
\ No newline at end of file
diff --git a/miniflux/vendor/PicoTools/Crypto.php b/miniflux/vendor/PicoTools/Crypto.php
deleted file mode 100644
index aa48295..0000000
--- a/miniflux/vendor/PicoTools/Crypto.php
+++ /dev/null
@@ -1,36 +0,0 @@
-<?php
-
-/*
- * This file is part of PicoTools.
- *
- * (c) Frédéric Guillot http://fredericguillot.com
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace PicoTools\Crypto;
-
-
-/**
- * Generate a random token
- *
- * @return string Random token
- */
-function token()
-{
-    return hash('sha256', uniqid('', true).microtime());
-}
-
-
-/**
- * Generate a signature with a key
- *
- * @param string $data Data
- * @param string $key Key
- * @return string Signature
- */
-function signature($data, $key)
-{
-    return hash_hmac('sha256', $data, $key);
-}
diff --git a/miniflux/vendor/PicoTools/Helper.php b/miniflux/vendor/PicoTools/Helper.php
index a7b4b57..85f57c0 100644
--- a/miniflux/vendor/PicoTools/Helper.php
+++ b/miniflux/vendor/PicoTools/Helper.php
@@ -194,6 +194,18 @@ function form_password($name, $values = array(), array $errors = array(), array
 }
 
 
+function form_email($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
+{
+    $class .= error_class($errors, $name);
+
+    $html = '<input type="email" name="'.$name.'" id="form-'.$name.'" '.form_value($values, $name).' class="'.$class.'" ';
+    $html .= implode(' ', $attributes).'/>';
+    $html .= error_list($errors, $name);
+
+    return $html;
+}
+
+
 function form_textarea($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
 {
     $class .= error_class($errors, $name);
diff --git a/miniflux/vendor/PicoTools/Pixtag.php b/miniflux/vendor/PicoTools/Pixtag.php
deleted file mode 100644
index a5e59d8..0000000
--- a/miniflux/vendor/PicoTools/Pixtag.php
+++ /dev/null
@@ -1,243 +0,0 @@
-<?php
-
-/*
- * This file is part of picoTools.
- *
- * (c) Frédéric Guillot http://fredericguillot.com
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace PicoTools;
-
-
-/**
- * A wrapper around exiv2 command line utility
- * You can write and read IPTC, XMP and EXIF metadata inside a picture
- *
- * @author Frédéric Guillot
- */
-class Pixtag implements \ArrayAccess, \Iterator
-{
-    /**
-     * Filename
-     *
-     * @access private
-     * @var string
-     */
-    private $filename;
-
-
-    /**
-     * Container
-     *
-     * @access private
-     * @var array
-     */
-    private $container = array();
-
-    
-    /**
-     * Constructor
-     *
-     * @access public
-     * @param string $filename Path to the picture
-     */
-    public function __construct($filename)
-    {
-        $this->filename = $filename;
-    }
-
-
-    /**
-     * Read metadata from the picture
-     *
-     * @access public
-     */
-    public function read()
-    {
-        $c = new Command('exiv2 -PIEXkt '.$this->filename);
-        $c->execute();
-        $this->parse($c->getStdout());
-    }
-
-
-    /**
-     * Parse metadata bloc from exiv2 output command
-     *
-     * @access public
-     * @param string $data Raw command output of exiv2
-     */
-    public function parse($data)
-    {
-        $lines = explode("\n", trim($data));
-
-        foreach ($lines as $line) {
-
-            $results = preg_split('/ /', $line, -1, PREG_SPLIT_OFFSET_CAPTURE);
-
-            if (isset($results[0][0])) {
-
-                $key = $results[0][0];
-                $value = '';
-
-                for ($i = 1, $ilen = count($results); $i < $ilen; ++$i) {
-
-                    if ($results[$i][0] !== '') {
-
-                        $value = substr($line, $results[$i][1]);
-                        break;
-                    }
-                }
-
-                if ($value === '(Binary value suppressed)') {
-
-                    $value = '';
-                }
-
-                $this->container[$key] = $value;
-            }
-        }
-    }
-
-
-    /**
-     * Write metadata to the picture
-     * This method erase all keys and then add them to the picture
-     *
-     * @access public
-     */
-    public function write()
-    {
-        $commands = array();
-
-        foreach ($this->container as $key => $value) {
-
-            $commands[] = sprintf('-M "del %s"', $key);
-            $commands[] = sprintf('-M "add %s %s"', $key, $value);
-        }
-
-        $c = new Command(sprintf(
-            'exiv2 %s %s',
-            implode(' ', $commands),
-            $this->filename
-        ));
-
-        $c->execute();
-
-        if ($c->getReturnValue() !== 0) {
-
-            throw new \RuntimeException('Unable to write metadata');
-        }
-    }
-
-
-    /**
-     * Set a metadata
-     *
-     * @access public
-     * @param string $offset Key name, see exiv2 documentation for keys list
-     * @param string $value Key value
-     */
-    public function offsetSet($offset, $value)
-    {
-        $this->container[$offset] = $value;
-    }
-
-
-    /**
-     * Check if a key exists
-     *
-     * @access public
-     * @param string $offset Key name, see exiv2 documentation for keys list
-     * @return boolean True if the key exists
-     */
-    public function offsetExists($offset)
-    {
-        return isset($this->container[$offset]);
-    }
-
-
-    /**
-     * Remove a metadata
-     *
-     * @access public
-     * @param string $offset Key name, see exiv2 documentation for keys list
-     */
-    public function offsetUnset($offset)
-    {
-        unset($this->container[$offset]);
-    }
-
-
-    /**
-     * Get a metadata
-     *
-     * @access public
-     * @param string $offset Key name, see exiv2 documentation for keys list
-     * @return string Key value
-     */
-    public function offsetGet($offset)
-    {
-        return isset($this->container[$offset]) ? $this->container[$offset] : null;
-    }
-
-
-    /**
-     * Reset the position of the container
-     *
-     * @access public
-     */
-    public function rewind()
-    {
-        reset($this->container);
-    }
-
-
-    /**
-     * Current
-     *
-     * @access public
-     * @return string Current value
-     */
-    public function current()
-    {
-        return current($this->container);
-    }
-
-
-    /**
-     * Key
-     *
-     * @access public
-     * @return string Current key
-     */
-    public function key()
-    {
-        return key($this->container);
-    }
-
-
-    /**
-     * Next
-     *
-     * @access public
-     */
-    public function next()
-    {
-        next($this->container);
-    }
-
-
-    /**
-     * Valid
-     *
-     * @access public
-     * @return boolean True if the current key is valid
-     */
-    public function valid()
-    {
-        return isset($this->container[key($this->container)]);
-    }
-}
\ No newline at end of file