Move base64, msgpack, and markdown nodes to parser category

to be consistent with other parsers, and change x-red to html

parsers/base64/70-base64.html

@@ -1,5 +1,5 @@
 
-<script type="text/x-red" data-template-name="base64">
+<script type="text/html" data-template-name="base64">
     <div class="form-row">
         <label for="node-input-action"><i class="fa fa-dot-circle-o"></i> <span data-i18n="base64.label.action"></span></label>
         <select style="width:70%" id="node-input-action">
@@ -20,7 +20,7 @@
 
 <script type="text/javascript">
     RED.nodes.registerType('base64',{
-        category: 'function',
+        category: 'parser',
         color:"#DEBD5C",
         defaults: {
             name: {value:""},

parsers/base64/locales/en-US/70-base64.html

@@ -1,4 +1,4 @@
-<script type="text/x-red" data-help-name="base64">
+<script type="text/html" data-help-name="base64">
     <p>A function that converts the chosen property (default <code>msg.payload</code>) to and from base64 format.</p>
     <p>If the input is a buffer it converts it to a Base64 encoded string.</p>
     <p>If the input is a Base64 string it converts it back to a binary buffer.</p>

parsers/base64/locales/ja/70-base64.html

@@ -1,4 +1,4 @@
-<script type="text/x-red" data-help-name="base64">
+<script type="text/html" data-help-name="base64">
     <p>選択したプロパティ(デフォルトは<code>msg.payload</code>)のBase64変換を行います。</p>
     <p>入力がバッファであれば、Base64エンコードされた文字列に変換します。</p>
     <p>入力がBase64文字列であれば、バイナリバッファ形式に変換します。</p>

parsers/base64/package.json

@@ -1,6 +1,6 @@
 {
     "name"          : "node-red-node-base64",
-    "version"       : "0.2.0",
+    "version"       : "0.2.1",
     "description"   : "A Node-RED node to pack and unpack objects to base64 format",
     "dependencies"  : {
     },