[latexila] Add Language headers to po files

[Piotr Drąg <piotrdrag src gnome org>]

commit 01a707dd01e12b83e3bcb8f00c8ec2d6579b50e4
Author: Piotr Drąg <piotrdrag gmail com>
Date:   Sun Jul 24 02:46:00 2016 +0200

    Add Language headers to po files
    
    Future versions of gettext will fail if this header is missing.

 po/de.po       |    2 +-
 po/eo.po       |    1 +
 po/hu.po       |    2 +-
 po/it.po       |    2 +-
 po/sl.po       |    2 +-
 po/sr latin po |    2 +-
 po/zh_CN.po    |    1 +
 7 files changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/po/de.po b/po/de.po
index 1242a71..01f40db 100644
--- a/po/de.po
+++ b/po/de.po
@@ -16,7 +16,7 @@ msgstr ""
 "PO-Revision-Date: 2015-12-27 09:08+0100\n"
 "Last-Translator: Benjamin Steinwender <b stbe at>\n"
 "Language-Team: Deutsch <gnome-de gnome org>\n"
-"Language: de_DE\n"
+"Language: de\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/eo.po b/po/eo.po
index 03b63af..3c02896 100644
--- a/po/eo.po
+++ b/po/eo.po
@@ -12,6 +12,7 @@ msgstr ""
 "PO-Revision-Date: 2011-10-28 06:03+0200\n"
 "Last-Translator: Kristjan SCHMIDT <kristjan schmidt googlemail com>\n"
 "Language-Team: Esperanto <ubuntu-l10n-eo lists launchpad net>\n"
+"Language: eo\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bits\n"
diff --git a/po/hu.po b/po/hu.po
index 41dff44..3205922 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -13,7 +13,7 @@ msgstr ""
 "PO-Revision-Date: 2016-03-06 23:30+0100\n"
 "Last-Translator: Balázs Úr <urbalazs gmail com>\n"
 "Language-Team: Hungarian <openscope at googlegroups dot com>\n"
-"Language: hu_HU\n"
+"Language: hu\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/it.po b/po/it.po
index a7661e8..c5c3dfb 100644
--- a/po/it.po
+++ b/po/it.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: \n"
 "Last-Translator: Vito Fasano <vito fasano gmail com>\n"
 "Language-Team: Italian\n"
-"Language: \n"
+"Language: it\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/sl.po b/po/sl.po
index be18140..8b30971 100644
--- a/po/sl.po
+++ b/po/sl.po
@@ -14,7 +14,7 @@ msgstr ""
 "PO-Revision-Date: 2014-09-16 17:27+0100\n"
 "Last-Translator: Matej Urbančič <mateju svn gnome org>\n"
 "Language-Team: Slovenščina <gnome-si googlegroups com>\n"
-"Language: sl_SI\n"
+"Language: sl\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/sr latin po b/po/sr latin po
index ac01b43..f13a344 100644
--- a/po/sr latin po
+++ b/po/sr latin po
@@ -12,7 +12,7 @@ msgstr ""
 "PO-Revision-Date: 2016-01-03 09:43+0200\n"
 "Last-Translator: Miroslav Nikolić <miroslavnikolic rocketmail com>\n"
 "Language-Team: Serbian <gnom prevod org>\n"
-"Language: sr\n"
+"Language: sr@latin\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"
diff --git a/po/zh_CN.po b/po/zh_CN.po
index cd09ad7..9c46a5d 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -13,6 +13,7 @@ msgstr ""
 "PO-Revision-Date: 2011-11-27 18:20+0800\n"
 "Last-Translator: Aron Xu <happyaron xu gmail com>\n"
 "Language-Team: Chinese (simplified) <i18n-zh googlegroups com>\n"
+"Language: zh_CN\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"