CustomFields

- renamed form block type "input" to "text" for consistency with React
- updated CustomFields router to comply with main router
- unit tests for CF router

lib/Form/Block/Text.php

@@ -0,0 +1,36 @@
+<?php
+namespace MailPoet\Form\Block;
+
+class Text extends Base {
+
+  static function render($block) {
+    $type = 'text';
+    if($block['id'] === 'email') {
+        $type = 'email';
+    }
+
+    $html = '';
+
+    $html .= '<p class="mailpoet_paragraph">';
+
+    $html .= static::renderLabel($block);
+
+    $html .= '<input type="'.$type.'" class="mailpoet_text" ';
+
+    $html .= 'name="'.static::getFieldName($block).'" ';
+
+    $html .= 'title="'.static::getFieldLabel($block).'" ';
+
+    $html .= 'value="'.static::getFieldValue($block).'" ';
+
+    $html .= static::renderInputPlaceholder($block);
+
+    $html .= static::getInputValidation($block);
+
+    $html .= '/>';
+
+    $html .= '</p>';
+
+    return $html;
+  }
+}