experimental singleton-based Db connection
db updates, remove init_connection()
more work on singleton-based DB
reinstate error handlers; better DB error reporting on failed queries
remove $link
remove db_connect, db_close; CLI fixes
daemon2: use passthrough to daemon-loop
fix some missing constructor parameters
Merge branch 'master' of github.com:gothfox/Tiny-Tiny-RSS

Conflicts:
	update_daemon2.php