better headers for text and html

Author: andris9

lib/mailComposer/mailComposer.js

@@ -608,9 +608,10 @@
     MailComposer.prototype._prepareTextPart = function(bodyPart, callback){
 
         if(!this._body.text.match(/[\u0080-\uFFFF]/)){
-            bodyPart.headers["Content-Type"] = "text/plain; format=flowed";
+            bodyPart.headers["Content-Type"] += "; format=flowed";
             bodyPart.flowed = true;
         }else{
+            bodyPart.headers["Content-Type"] += "; charset=utf-8";
             bodyPart.headers["Content-Transfer-Encoding"] = "quoted-printable";
             bodyPart.quotedPrintable = true;
         }
@@ -626,9 +627,10 @@
      */
     MailComposer.prototype._prepareHTMLPart = function(bodyPart, callback){
         if(!this._body.html.match(/[\u0080-\uFFFF]/)){
-            bodyPart.headers["Content-Type"] = "text/html; format=flowed";
+            bodyPart.headers["Content-Type"] += "; format=flowed";
             bodyPart.flowed = true;
         }else{
+            bodyPart.headers["Content-Type"] += "; charset=utf-8";
             bodyPart.headers["Content-Transfer-Encoding"] = "quoted-printable";
             bodyPart.quotedPrintable = true;
         }