Remove trim for drafts

Closes #1188

app/js/lib/ng_utils.js

@@ -1399,7 +1399,7 @@ angular.module('izhukov.utils', [])
       })
     }
 
-    function parseMarkdown (text, entities) {
+    function parseMarkdown (text, entities, noTrim) {
       if (text.indexOf('`') == -1 && text.indexOf('@') == -1) {
         return text.trim()
       }
@@ -1461,7 +1461,7 @@ angular.module('izhukov.utils', [])
         newText = text
         entities.splice(0, entities.length)
       }
-      if (!entities.length) {
+      if (!entities.length && !noTrim) {
         newText = newText.trim()
       }
       return newText

app/js/services.js

@@ -4643,7 +4643,7 @@ angular.module('myApp.services', ['myApp.i18n', 'izhukov.utils'])
           var message = localDraft.text
           var entities = []
           message = RichTextProcessor.parseEmojis(message)
-          message = RichTextProcessor.parseMarkdown(message, entities)
+          message = RichTextProcessor.parseMarkdown(message, entities, true)
           if (localDraft.replyToMsgID > 0) {
             params.flags |= 1
             params.reply_to_msg_id = localDraft.replyToMsgID