BUG 10152 "PMFSendMessage() should have an option for..." SOLVED

- PMFSendMessage function can't be set for send mail with format text plain
- Fixed, PMFSendMessage now use the extension of the template for get the
  format of the mail, example:
    > path_to_template/MyTemplate.html
      the extension is html, then use text/html content type for the mail
    > path_to_template/MyTemplate.txt
      the extension is txt, then use text/plain content type for the mail
    > If the extension is different to html/htm, then used text/plain in all cases
* Available from version ProcessMaker-2.0.46

workflow/engine/classes/class.wsBase.php

@@ -747,7 +747,7 @@ class wsBase
         $delIndex = 0
     ) {
         try {
-            G::loadClass( 'system' );
+            G::LoadClass("system");
 
             $aSetup = System::getEmailConfiguration();
 
@@ -816,7 +816,8 @@ class wsBase
                 "app_msg_attach"   => $aAttachment,
                 "app_msg_template" => "",
                 "app_msg_status"   => "pending",
-                "app_msg_show_message" => $showMessage
+                "app_msg_show_message" => $showMessage,
+                "contentTypeIsHtml" => (preg_match("/^.+\.html?$/i", $fileTemplate))? true : false
             );
 
             $oSpool->create( $messageArray );