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/export.pot

@@ -0,0 +1,59 @@
+#. extracted from export.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"
+
+#: export.txt:1
+msgid ""
+"Export\n"
+"======"
+msgstr ""
+
+#: export.txt:4
+msgid "Export calcurse data (appointments, events and todos)."
+msgstr ""
+
+#: export.txt:6
+msgid ""
+"This leads to the export submenu, from which you can choose between two\n"
+"different export formats: 'ical' and 'pcal'. Choosing one of those formats "
+"lets\n"
+"you export calcurse data to icalendar or pcal format."
+msgstr ""
+
+#: export.txt:10
+msgid ""
+"You first need to specify the file to which the data will be exported.  By\n"
+"default, this file is:"
+msgstr ""
+
+#: export.txt:13
+msgid "     ~/calcurse.ics"
+msgstr ""
+
+#: export.txt:15
+msgid "for an ical export, and:"
+msgstr ""
+
+#: export.txt:17
+msgid "     ~/calcurse.txt"
+msgstr ""
+
+#: export.txt:19
+msgid "for a pcal export."
+msgstr ""
+
+#: export.txt:21
+msgid ""
+"Calcurse data are exported in the following order: events, appointments, "
+"todos."
+msgstr ""