Author: Helen Foster
MDL-25475 lang string update thanks to Inaki Arenaza and Angelo Pappano
http://git.moodle.org/gw?p=moodle.git;a=commit;h=bea9531a784f8518fa7106aa0111eb23f8527c78
http://github.com/moodle/moodle/commit/bea9531a784f8518fa7106aa0111eb23f8527c78
+ 2.0 en [auth_dbname_key,auth_db]
+ 2.0 en [auth_dbpasstype,auth_db]
+ 2.0 en [auth_dbuser_key,auth_db]