Add POT files for online help texts

Use translate-toolkit to generate message catalogs for all online help
texts. Add Transifex resources for each of the message catalogs.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

po/doc/credits.pot

@@ -0,0 +1,53 @@
+#. extracted from credits.txt
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-07-23 10:28+0200\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"X-Generator: Translate Toolkit 1.10.0\n"
+
+#: credits.txt:1
+msgid ""
+"Calcurse - text-based organizer\n"
+"==============================="
+msgstr ""
+
+#: credits.txt:4
+msgid ""
+"Copyright (c) 2004-2013 calcurse Development Team\n"
+"All rights reserved."
+msgstr ""
+
+#: credits.txt:7
+msgid ""
+"Redistribution and use in source and binary forms, with or without\n"
+"modification, are permitted provided that the following conditions\n"
+"are met:"
+msgstr ""
+
+#: credits.txt:11
+msgid ""
+"\t- Redistributions of source code must retain the above\n"
+"\t  copyright notice, this list of conditions and the\n"
+"\t  following disclaimer."
+msgstr ""
+
+#: credits.txt:15
+msgid ""
+"\t- Redistributions in binary form must reproduce the above\n"
+"\t  copyright notice, this list of conditions and the\n"
+"\t  following disclaimer in the documentation and/or other\n"
+"\t  materials provided with the distribution."
+msgstr ""
+
+#: credits.txt:21
+msgid ""
+"Send your feedback or comments to : misc@calcurse.org\n"
+"Calcurse home page : http://calcurse.org"
+msgstr ""