Extend icalendar export

Export now covers advanced recurrence rules and properties imported to a note
file.

Signed-off-by: Lars Henriksen <LarsHenriksen@get2net.dk>
Signed-off-by: Lukas Fleischer <lfleischer@calcurse.org>

test/ical-014.sh

@@ -0,0 +1,28 @@
+#!/bin/sh
+# Import followed by export and comparison
+
+. "${TEST_INIT:-./test-init.sh}"
+
+if [ "$1" = 'actual' ]; then
+  mkdir .calcurse || exit 1
+  cp "$DATA_DIR/conf" .calcurse || exit 1
+  "$CALCURSE" -q -D "$PWD/.calcurse" -i "$DATA_DIR/ical-014.ical"
+  "$CALCURSE" -D "$PWD/.calcurse" -x | 
+  sed -n '
+	/DESCRIPTION/p
+	/LOCATION/p
+	/COMMENT/p
+  ' |
+  sort
+  rm -rf .calcurse || exit 1
+elif [ "$1" = 'expected' ]; then
+  cat "$DATA_DIR/ical-014.ical" |
+  sed -n '
+	/DESCRIPTION/p
+	/LOCATION/p
+	/COMMENT/p
+  ' |
+  sort
+else
+  ./run-test "$0"
+fi