Pontoon: Update Polish (pl) localization of MDN

Localization authors:
- Piotr Drąg <piotrdrag@gmail.com>

locale/pl/LC_MESSAGES/javascript.po

@@ -1,10 +1,10 @@
-#
+# 
 msgid ""
 msgstr ""
 "Project-Id-Version: MDN 2016.0\n"
 "Report-Msgid-Bugs-To: dev-mdn@lists.mozilla.org\n"
 "POT-Creation-Date: 2017-04-27 07:39-0700\n"
-"PO-Revision-Date: 2017-03-04 09:20+0000\n"
+"PO-Revision-Date: 2017-04-28 11:32+0000\n"
 "Last-Translator: Piotr Drąg <piotrdrag@gmail.com>\n"
 "Language-Team: Polish https://pontoon.mozilla.org/pl/\n"
 "Language: pl\n"
@@ -293,24 +293,23 @@ msgstr "Jaki ma być tytuł przykładu?"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:23
 msgid "HTML"
-msgstr ""
+msgstr "HTML"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:24
 msgid "Sample HTML Content"
 msgstr "Przykładowa zawartość HTML"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:27
 msgid "CSS"
-msgstr ""
+msgstr "CSS"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:28
 msgid "Sample CSS Content"
 msgstr "Przykładowa zawartość CSS"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:31
-#, fuzzy
 msgid "JavaScript"
-msgstr "Zawartość JavaScript"
+msgstr "JavaScript"
 
 #: kuma/static/js/libs/ckeditor/source/plugins/mdn-sampler/plugin.js:32
 msgid "Sample JavaScript Content"