Initial Release of the calendar plugin

dav/SabreDAV/examples/sql/sqlite.addressbooks.sql

@@ -0,0 +1,17 @@
+CREATE TABLE addressbooks (
+    id integer primary key asc,
+    principaluri text,
+    displayname text,
+    uri text,
+    description text,
+	ctag integer
+);
+
+CREATE TABLE cards (
+	id integer primary key asc,
+    addressbookid integer,
+    carddata blob,
+    uri text,
+    lastmodified integer
+);
+